Home / 486,981.52-672,021.57-272,123.35

Finding the Fourth Proportional to 486,981.52, 672,021.57 and 272,123.35

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Solution

The fourth proportional to 486,981.52, 672,021.57 and 272,123.35 is: 375,523.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,981.52 : 672,021.57 = 272,123.35 : x
  2. Step 2: Convert to fraction form
    486,981.52/672,021.57 = 272,123.35/x
  3. Step 3: Cross multiply
    486,981.52x = 672,021.57 × 272,123.35
  4. Step 4: Simplify right side
    486,981.52x = 182,872,760,241.07
  5. Step 5: Solve for x
    x = 182,872,760,241.07/486,981.52
  6. Step 6: Final answer
    x = 375,523.00

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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.