Home / 747,640.46-1,031,730.51-425,343.59

Finding the Fourth Proportional to 747,640.46, 1,031,730.51 and 425,343.59

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Solution

The fourth proportional to 747,640.46, 1,031,730.51 and 425,343.59 is: 586,966.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,640.46 : 1,031,730.51 = 425,343.59 : x
  2. Step 2: Convert to fraction form
    747,640.46/1,031,730.51 = 425,343.59/x
  3. Step 3: Cross multiply
    747,640.46x = 1,031,730.51 × 425,343.59
  4. Step 4: Simplify right side
    747,640.46x = 438,839,959,341.31
  5. Step 5: Solve for x
    x = 438,839,959,341.31/747,640.46
  6. Step 6: Final answer
    x = 586,966.57

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Double scale
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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.