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Finding the Fourth Proportional to 653,770.59, 902,276.64 and 395,789.73

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Solution

The fourth proportional to 653,770.59, 902,276.64 and 395,789.73 is: 546,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,770.59 : 902,276.64 = 395,789.73 : x
  2. Step 2: Convert to fraction form
    653,770.59/902,276.64 = 395,789.73/x
  3. Step 3: Cross multiply
    653,770.59x = 902,276.64 × 395,789.73
  4. Step 4: Simplify right side
    653,770.59x = 357,111,827,730.91
  5. Step 5: Solve for x
    x = 357,111,827,730.91/653,770.59
  6. Step 6: Final answer
    x = 546,234.16

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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.