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Finding the Fourth Proportional to 768,323.13, 1,060,302.92 and 424,158.31

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Solution

The fourth proportional to 768,323.13, 1,060,302.92 and 424,158.31 is: 585,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,323.13 : 1,060,302.92 = 424,158.31 : x
  2. Step 2: Convert to fraction form
    768,323.13/1,060,302.92 = 424,158.31/x
  3. Step 3: Cross multiply
    768,323.13x = 1,060,302.92 × 424,158.31
  4. Step 4: Simplify right side
    768,323.13x = 449,736,294,635.27
  5. Step 5: Solve for x
    x = 449,736,294,635.27/768,323.13
  6. Step 6: Final answer
    x = 585,347.85

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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.