Home / 420,756.59-580,693.92-237,001.21

Finding the Fourth Proportional to 420,756.59, 580,693.92 and 237,001.21

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Solution

The fourth proportional to 420,756.59, 580,693.92 and 237,001.21 is: 327,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,756.59 : 580,693.92 = 237,001.21 : x
  2. Step 2: Convert to fraction form
    420,756.59/580,693.92 = 237,001.21/x
  3. Step 3: Cross multiply
    420,756.59x = 580,693.92 × 237,001.21
  4. Step 4: Simplify right side
    420,756.59x = 137,625,158,776.17
  5. Step 5: Solve for x
    x = 137,625,158,776.17/420,756.59
  6. Step 6: Final answer
    x = 327,089.73

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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.