Home / 749,135.03-1,123,712.90-243,698.65

Finding the Fourth Proportional to 749,135.03, 1,123,712.90 and 243,698.65

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Solution

The fourth proportional to 749,135.03, 1,123,712.90 and 243,698.65 is: 365,551.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,135.03 : 1,123,712.90 = 243,698.65 : x
  2. Step 2: Convert to fraction form
    749,135.03/1,123,712.90 = 243,698.65/x
  3. Step 3: Cross multiply
    749,135.03x = 1,123,712.90 × 243,698.65
  4. Step 4: Simplify right side
    749,135.03x = 273,847,316,764.12
  5. Step 5: Solve for x
    x = 273,847,316,764.12/749,135.03
  6. Step 6: Final answer
    x = 365,551.34

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Double scale
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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.