Home / 487,039.52-672,117.02-272,183.17

Finding the Fourth Proportional to 487,039.52, 672,117.02 and 272,183.17

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Solution

The fourth proportional to 487,039.52, 672,117.02 and 272,183.17 is: 375,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,039.52 : 672,117.02 = 272,183.17 : x
  2. Step 2: Convert to fraction form
    487,039.52/672,117.02 = 272,183.17/x
  3. Step 3: Cross multiply
    487,039.52x = 672,117.02 × 272,183.17
  4. Step 4: Simplify right side
    487,039.52x = 182,938,941,114.55
  5. Step 5: Solve for x
    x = 182,938,941,114.55/487,039.52
  6. Step 6: Final answer
    x = 375,614.16

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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.