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Finding the Fourth Proportional to 622,892.90, 935,376.15 and 342,611.30

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Solution

The fourth proportional to 622,892.90, 935,376.15 and 342,611.30 is: 514,487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,892.90 : 935,376.15 = 342,611.30 : x
  2. Step 2: Convert to fraction form
    622,892.90/935,376.15 = 342,611.30/x
  3. Step 3: Cross multiply
    622,892.90x = 935,376.15 × 342,611.30
  4. Step 4: Simplify right side
    622,892.90x = 320,470,438,740.50
  5. Step 5: Solve for x
    x = 320,470,438,740.50/622,892.90
  6. Step 6: Final answer
    x = 514,487.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.