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Finding the Fourth Proportional to 663,008.48, 914,711.70 and 433,696.66

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Solution

The fourth proportional to 663,008.48, 914,711.70 and 433,696.66 is: 598,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,008.48 : 914,711.70 = 433,696.66 : x
  2. Step 2: Convert to fraction form
    663,008.48/914,711.70 = 433,696.66/x
  3. Step 3: Cross multiply
    663,008.48x = 914,711.70 × 433,696.66
  4. Step 4: Simplify right side
    663,008.48x = 396,707,409,152.92
  5. Step 5: Solve for x
    x = 396,707,409,152.92/663,008.48
  6. Step 6: Final answer
    x = 598,344.40

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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.