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Finding the Fourth Proportional to 487,454.08, 672,658.72 and 269,649.76

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Solution

The fourth proportional to 487,454.08, 672,658.72 and 269,649.76 is: 372,101.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,454.08 : 672,658.72 = 269,649.76 : x
  2. Step 2: Convert to fraction form
    487,454.08/672,658.72 = 269,649.76/x
  3. Step 3: Cross multiply
    487,454.08x = 672,658.72 × 269,649.76
  4. Step 4: Simplify right side
    487,454.08x = 181,382,262,409.91
  5. Step 5: Solve for x
    x = 181,382,262,409.91/487,454.08
  6. Step 6: Final answer
    x = 372,101.23

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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.