Home / 487,252.32-672,405.12-272,391.36

Finding the Fourth Proportional to 487,252.32, 672,405.12 and 272,391.36

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Solution

The fourth proportional to 487,252.32, 672,405.12 and 272,391.36 is: 375,898.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,252.32 : 672,405.12 = 272,391.36 : x
  2. Step 2: Convert to fraction form
    487,252.32/672,405.12 = 272,391.36/x
  3. Step 3: Cross multiply
    487,252.32x = 672,405.12 × 272,391.36
  4. Step 4: Simplify right side
    487,252.32x = 183,157,345,107.76
  5. Step 5: Solve for x
    x = 183,157,345,107.76/487,252.32
  6. Step 6: Final answer
    x = 375,898.35

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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.