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Finding the Fourth Proportional to 653,713.92, 902,312.64 and 395,591.04

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Solution

The fourth proportional to 653,713.92, 902,312.64 and 395,591.04 is: 546,029.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,713.92 : 902,312.64 = 395,591.04 : x
  2. Step 2: Convert to fraction form
    653,713.92/902,312.64 = 395,591.04/x
  3. Step 3: Cross multiply
    653,713.92x = 902,312.64 × 395,591.04
  4. Step 4: Simplify right side
    653,713.92x = 356,946,795,662.75
  5. Step 5: Solve for x
    x = 356,946,795,662.75/653,713.92
  6. Step 6: Final answer
    x = 546,029.06

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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.