Home / 749,112.70-1,123,669.05-300,048.70

Finding the Fourth Proportional to 749,112.70, 1,123,669.05 and 300,048.70

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Solution

The fourth proportional to 749,112.70, 1,123,669.05 and 300,048.70 is: 450,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,112.70 : 1,123,669.05 = 300,048.70 : x
  2. Step 2: Convert to fraction form
    749,112.70/1,123,669.05 = 300,048.70/x
  3. Step 3: Cross multiply
    749,112.70x = 1,123,669.05 × 300,048.70
  4. Step 4: Simplify right side
    749,112.70x = 337,155,437,682.74
  5. Step 5: Solve for x
    x = 337,155,437,682.74/749,112.70
  6. Step 6: Final answer
    x = 450,073.05

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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.