Home / 487,220.92-672,367.56-272,370.04

Finding the Fourth Proportional to 487,220.92, 672,367.56 and 272,370.04

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Solution

The fourth proportional to 487,220.92, 672,367.56 and 272,370.04 is: 375,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,220.92 : 672,367.56 = 272,370.04 : x
  2. Step 2: Convert to fraction form
    487,220.92/672,367.56 = 272,370.04/x
  3. Step 3: Cross multiply
    487,220.92x = 672,367.56 × 272,370.04
  4. Step 4: Simplify right side
    487,220.92x = 183,132,775,850.07
  5. Step 5: Solve for x
    x = 183,132,775,850.07/487,220.92
  6. Step 6: Final answer
    x = 375,872.16

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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.