Home / 487,252.64-672,442.08-272,388.80

Finding the Fourth Proportional to 487,252.64, 672,442.08 and 272,388.80

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Solution

The fourth proportional to 487,252.64, 672,442.08 and 272,388.80 is: 375,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,252.64 : 672,442.08 = 272,388.80 : x
  2. Step 2: Convert to fraction form
    487,252.64/672,442.08 = 272,388.80/x
  3. Step 3: Cross multiply
    487,252.64x = 672,442.08 × 272,388.80
  4. Step 4: Simplify right side
    487,252.64x = 183,165,691,240.70
  5. Step 5: Solve for x
    x = 183,165,691,240.70/487,252.64
  6. Step 6: Final answer
    x = 375,915.24

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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.