Home / 747,242.50-1,031,194.05-407,710.75

Finding the Fourth Proportional to 747,242.50, 1,031,194.05 and 407,710.75

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Solution

The fourth proportional to 747,242.50, 1,031,194.05 and 407,710.75 is: 562,640.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,242.50 : 1,031,194.05 = 407,710.75 : x
  2. Step 2: Convert to fraction form
    747,242.50/1,031,194.05 = 407,710.75/x
  3. Step 3: Cross multiply
    747,242.50x = 1,031,194.05 × 407,710.75
  4. Step 4: Simplify right side
    747,242.50x = 420,428,899,521.04
  5. Step 5: Solve for x
    x = 420,428,899,521.04/747,242.50
  6. Step 6: Final answer
    x = 562,640.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.