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Finding the Fourth Proportional to 428,471.88, 591,326.58 and 237,545.16

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Solution

The fourth proportional to 428,471.88, 591,326.58 and 237,545.16 is: 327,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,471.88 : 591,326.58 = 237,545.16 : x
  2. Step 2: Convert to fraction form
    428,471.88/591,326.58 = 237,545.16/x
  3. Step 3: Cross multiply
    428,471.88x = 591,326.58 × 237,545.16
  4. Step 4: Simplify right side
    428,471.88x = 140,466,767,058.35
  5. Step 5: Solve for x
    x = 140,466,767,058.35/428,471.88
  6. Step 6: Final answer
    x = 327,831.94

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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.