Home / 728,726.40-1,093,089.60-374,432.40

Finding the Fourth Proportional to 728,726.40, 1,093,089.60 and 374,432.40

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Solution

The fourth proportional to 728,726.40, 1,093,089.60 and 374,432.40 is: 561,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,726.40 : 1,093,089.60 = 374,432.40 : x
  2. Step 2: Convert to fraction form
    728,726.40/1,093,089.60 = 374,432.40/x
  3. Step 3: Cross multiply
    728,726.40x = 1,093,089.60 × 374,432.40
  4. Step 4: Simplify right side
    728,726.40x = 409,288,162,343.04
  5. Step 5: Solve for x
    x = 409,288,162,343.04/728,726.40
  6. Step 6: Final answer
    x = 561,648.60

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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.