Home / 428,417.47-591,236.04-237,430.88

Finding the Fourth Proportional to 428,417.47, 591,236.04 and 237,430.88

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Solution

The fourth proportional to 428,417.47, 591,236.04 and 237,430.88 is: 327,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,417.47 : 591,236.04 = 237,430.88 : x
  2. Step 2: Convert to fraction form
    428,417.47/591,236.04 = 237,430.88/x
  3. Step 3: Cross multiply
    428,417.47x = 591,236.04 × 237,430.88
  4. Step 4: Simplify right side
    428,417.47x = 140,377,693,264.92
  5. Step 5: Solve for x
    x = 140,377,693,264.92/428,417.47
  6. Step 6: Final answer
    x = 327,665.66

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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.