Home / 687,943.26-949,385.45-382,024.76

Finding the Fourth Proportional to 687,943.26, 949,385.45 and 382,024.76

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Solution

The fourth proportional to 687,943.26, 949,385.45 and 382,024.76 is: 527,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,943.26 : 949,385.45 = 382,024.76 : x
  2. Step 2: Convert to fraction form
    687,943.26/949,385.45 = 382,024.76/x
  3. Step 3: Cross multiply
    687,943.26x = 949,385.45 × 382,024.76
  4. Step 4: Simplify right side
    687,943.26x = 362,688,748,683.74
  5. Step 5: Solve for x
    x = 362,688,748,683.74/687,943.26
  6. Step 6: Final answer
    x = 527,207.36

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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.