Home / 487,223.32-672,382.02-272,387.56

Finding the Fourth Proportional to 487,223.32, 672,382.02 and 272,387.56

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Solution

The fourth proportional to 487,223.32, 672,382.02 and 272,387.56 is: 375,902.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,223.32 : 672,382.02 = 272,387.56 : x
  2. Step 2: Convert to fraction form
    487,223.32/672,382.02 = 272,387.56/x
  3. Step 3: Cross multiply
    487,223.32x = 672,382.02 × 272,387.56
  4. Step 4: Simplify right side
    487,223.32x = 183,148,497,815.67
  5. Step 5: Solve for x
    x = 183,148,497,815.67/487,223.32
  6. Step 6: Final answer
    x = 375,902.57

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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.