Home / 728,514.20-1,092,252.90-279,061.40

Finding the Fourth Proportional to 728,514.20, 1,092,252.90 and 279,061.40

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Solution

The fourth proportional to 728,514.20, 1,092,252.90 and 279,061.40 is: 418,393.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,514.20 : 1,092,252.90 = 279,061.40 : x
  2. Step 2: Convert to fraction form
    728,514.20/1,092,252.90 = 279,061.40/x
  3. Step 3: Cross multiply
    728,514.20x = 1,092,252.90 × 279,061.40
  4. Step 4: Simplify right side
    728,514.20x = 304,805,623,428.06
  5. Step 5: Solve for x
    x = 304,805,623,428.06/728,514.20
  6. Step 6: Final answer
    x = 418,393.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.