Home / 486,982.10-672,022.40-272,123.93

Finding the Fourth Proportional to 486,982.10, 672,022.40 and 272,123.93

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Solution

The fourth proportional to 486,982.10, 672,022.40 and 272,123.93 is: 375,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,982.10 : 672,022.40 = 272,123.93 : x
  2. Step 2: Convert to fraction form
    486,982.10/672,022.40 = 272,123.93/x
  3. Step 3: Cross multiply
    486,982.10x = 672,022.40 × 272,123.93
  4. Step 4: Simplify right side
    486,982.10x = 182,873,376,536.03
  5. Step 5: Solve for x
    x = 182,873,376,536.03/486,982.10
  6. Step 6: Final answer
    x = 375,523.82

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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.