Home / 486,928.62-671,948.85-272,070.18

Finding the Fourth Proportional to 486,928.62, 671,948.85 and 272,070.18

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Solution

The fourth proportional to 486,928.62, 671,948.85 and 272,070.18 is: 375,449.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,928.62 : 671,948.85 = 272,070.18 : x
  2. Step 2: Convert to fraction form
    486,928.62/671,948.85 = 272,070.18/x
  3. Step 3: Cross multiply
    486,928.62x = 671,948.85 × 272,070.18
  4. Step 4: Simplify right side
    486,928.62x = 182,817,244,570.29
  5. Step 5: Solve for x
    x = 182,817,244,570.29/486,928.62
  6. Step 6: Final answer
    x = 375,449.78

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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.