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Finding the Fourth Proportional to 662,359.70, 914,060.76 and 375,884.57

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Solution

The fourth proportional to 662,359.70, 914,060.76 and 375,884.57 is: 518,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,359.70 : 914,060.76 = 375,884.57 : x
  2. Step 2: Convert to fraction form
    662,359.70/914,060.76 = 375,884.57/x
  3. Step 3: Cross multiply
    662,359.70x = 914,060.76 × 375,884.57
  4. Step 4: Simplify right side
    662,359.70x = 343,581,335,726.47
  5. Step 5: Solve for x
    x = 343,581,335,726.47/662,359.70
  6. Step 6: Final answer
    x = 518,723.19

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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.