Home / 749,249.40-1,123,874.10-434,321.40

Finding the Fourth Proportional to 749,249.40, 1,123,874.10 and 434,321.40

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Solution

The fourth proportional to 749,249.40, 1,123,874.10 and 434,321.40 is: 651,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,249.40 : 1,123,874.10 = 434,321.40 : x
  2. Step 2: Convert to fraction form
    749,249.40/1,123,874.10 = 434,321.40/x
  3. Step 3: Cross multiply
    749,249.40x = 1,123,874.10 × 434,321.40
  4. Step 4: Simplify right side
    749,249.40x = 488,122,572,535.74
  5. Step 5: Solve for x
    x = 488,122,572,535.74/749,249.40
  6. Step 6: Final answer
    x = 651,482.10

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Half scale
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Double scale
Find fourth proportional to 749,250.40, 1,123,875.60 and 434,322.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.