Home / 487,291.12-672,523.49-272,443.88

Finding the Fourth Proportional to 487,291.12, 672,523.49 and 272,443.88

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Solution

The fourth proportional to 487,291.12, 672,523.49 and 272,443.88 is: 376,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,291.12 : 672,523.49 = 272,443.88 : x
  2. Step 2: Convert to fraction form
    487,291.12/672,523.49 = 272,443.88/x
  3. Step 3: Cross multiply
    487,291.12x = 672,523.49 × 272,443.88
  4. Step 4: Simplify right side
    487,291.12x = 183,224,909,006.74
  5. Step 5: Solve for x
    x = 183,224,909,006.74/487,291.12
  6. Step 6: Final answer
    x = 376,007.08

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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.