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Finding the Fourth Proportional to 782,242.96, 1,079,405.96 and 438,031.04

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Solution

The fourth proportional to 782,242.96, 1,079,405.96 and 438,031.04 is: 604,432.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,242.96 : 1,079,405.96 = 438,031.04 : x
  2. Step 2: Convert to fraction form
    782,242.96/1,079,405.96 = 438,031.04/x
  3. Step 3: Cross multiply
    782,242.96x = 1,079,405.96 × 438,031.04
  4. Step 4: Simplify right side
    782,242.96x = 472,813,315,241.00
  5. Step 5: Solve for x
    x = 472,813,315,241.00/782,242.96
  6. Step 6: Final answer
    x = 604,432.82

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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.