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Finding the Fourth Proportional to 716,210.85, 988,039.64 and 429,232.71

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Solution

The fourth proportional to 716,210.85, 988,039.64 and 429,232.71 is: 592,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,210.85 : 988,039.64 = 429,232.71 : x
  2. Step 2: Convert to fraction form
    716,210.85/988,039.64 = 429,232.71/x
  3. Step 3: Cross multiply
    716,210.85x = 988,039.64 × 429,232.71
  4. Step 4: Simplify right side
    716,210.85x = 424,098,932,264.62
  5. Step 5: Solve for x
    x = 424,098,932,264.62/716,210.85
  6. Step 6: Final answer
    x = 592,142.57

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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.