Home / 428,743.12-591,700.98-237,818.20

Finding the Fourth Proportional to 428,743.12, 591,700.98 and 237,818.20

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Solution

The fourth proportional to 428,743.12, 591,700.98 and 237,818.20 is: 328,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,743.12 : 591,700.98 = 237,818.20 : x
  2. Step 2: Convert to fraction form
    428,743.12/591,700.98 = 237,818.20/x
  3. Step 3: Cross multiply
    428,743.12x = 591,700.98 × 237,818.20
  4. Step 4: Simplify right side
    428,743.12x = 140,717,262,001.84
  5. Step 5: Solve for x
    x = 140,717,262,001.84/428,743.12
  6. Step 6: Final answer
    x = 328,208.79

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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.