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Finding the Fourth Proportional to 458,147.84, 632,143.68 and 443,045.12

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Solution

The fourth proportional to 458,147.84, 632,143.68 and 443,045.12 is: 611,305.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,147.84 : 632,143.68 = 443,045.12 : x
  2. Step 2: Convert to fraction form
    458,147.84/632,143.68 = 443,045.12/x
  3. Step 3: Cross multiply
    458,147.84x = 632,143.68 × 443,045.12
  4. Step 4: Simplify right side
    458,147.84x = 280,068,172,562.84
  5. Step 5: Solve for x
    x = 280,068,172,562.84/458,147.84
  6. Step 6: Final answer
    x = 611,305.23

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1.5x scale

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.