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Finding the Fourth Proportional to 768,582, 1,060,562.55 and 446,229.12

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Solution

The fourth proportional to 768,582, 1,060,562.55 and 446,229.12 is: 615,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,582 : 1,060,562.55 = 446,229.12 : x
  2. Step 2: Convert to fraction form
    768,582/1,060,562.55 = 446,229.12/x
  3. Step 3: Cross multiply
    768,582x = 1,060,562.55 × 446,229.12
  4. Step 4: Simplify right side
    768,582x = 473,253,893,391.46
  5. Step 5: Solve for x
    x = 473,253,893,391.46/768,582
  6. Step 6: Final answer
    x = 615,749.38

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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.