Home / 428,430.30-591,233.88-237,456.02

Finding the Fourth Proportional to 428,430.30, 591,233.88 and 237,456.02

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Solution

The fourth proportional to 428,430.30, 591,233.88 and 237,456.02 is: 327,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,430.30 : 591,233.88 = 237,456.02 : x
  2. Step 2: Convert to fraction form
    428,430.30/591,233.88 = 237,456.02/x
  3. Step 3: Cross multiply
    428,430.30x = 591,233.88 × 237,456.02
  4. Step 4: Simplify right side
    428,430.30x = 140,392,044,033.96
  5. Step 5: Solve for x
    x = 140,392,044,033.96/428,430.30
  6. Step 6: Final answer
    x = 327,689.34

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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.