Home / 486,980.74-672,031.94-272,121.02

Finding the Fourth Proportional to 486,980.74, 672,031.94 and 272,121.02

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Solution

The fourth proportional to 486,980.74, 672,031.94 and 272,121.02 is: 375,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,980.74 : 672,031.94 = 272,121.02 : x
  2. Step 2: Convert to fraction form
    486,980.74/672,031.94 = 272,121.02/x
  3. Step 3: Cross multiply
    486,980.74x = 672,031.94 × 272,121.02
  4. Step 4: Simplify right side
    486,980.74x = 182,874,016,985.38
  5. Step 5: Solve for x
    x = 182,874,016,985.38/486,980.74
  6. Step 6: Final answer
    x = 375,526.18

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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.