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Finding the Fourth Proportional to 428,944, 591,854.88 and 237,916.48

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Solution

The fourth proportional to 428,944, 591,854.88 and 237,916.48 is: 328,276.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,944 : 591,854.88 = 237,916.48 : x
  2. Step 2: Convert to fraction form
    428,944/591,854.88 = 237,916.48/x
  3. Step 3: Cross multiply
    428,944x = 591,854.88 × 237,916.48
  4. Step 4: Simplify right side
    428,944x = 140,812,029,720.42
  5. Step 5: Solve for x
    x = 140,812,029,720.42/428,944
  6. Step 6: Final answer
    x = 328,276.02

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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.