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Finding the Fourth Proportional to 884,385.62, 1,220,495.42 and 497,322.86

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Solution

The fourth proportional to 884,385.62, 1,220,495.42 and 497,322.86 is: 686,329.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,385.62 : 1,220,495.42 = 497,322.86 : x
  2. Step 2: Convert to fraction form
    884,385.62/1,220,495.42 = 497,322.86/x
  3. Step 3: Cross multiply
    884,385.62x = 1,220,495.42 × 497,322.86
  4. Step 4: Simplify right side
    884,385.62x = 606,980,272,891.30
  5. Step 5: Solve for x
    x = 606,980,272,891.30/884,385.62
  6. Step 6: Final answer
    x = 686,329.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.