Home / 728,717.40-1,092,687.30-307,517.40

Finding the Fourth Proportional to 728,717.40, 1,092,687.30 and 307,517.40

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Solution

The fourth proportional to 728,717.40, 1,092,687.30 and 307,517.40 is: 461,112.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,717.40 : 1,092,687.30 = 307,517.40 : x
  2. Step 2: Convert to fraction form
    728,717.40/1,092,687.30 = 307,517.40/x
  3. Step 3: Cross multiply
    728,717.40x = 1,092,687.30 × 307,517.40
  4. Step 4: Simplify right side
    728,717.40x = 336,020,357,509.02
  5. Step 5: Solve for x
    x = 336,020,357,509.02/728,717.40
  6. Step 6: Final answer
    x = 461,112.03

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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.