Home / 728,657.20-1,092,402.60-307,586.80

Finding the Fourth Proportional to 728,657.20, 1,092,402.60 and 307,586.80

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Solution

The fourth proportional to 728,657.20, 1,092,402.60 and 307,586.80 is: 461,134.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,657.20 : 1,092,402.60 = 307,586.80 : x
  2. Step 2: Convert to fraction form
    728,657.20/1,092,402.60 = 307,586.80/x
  3. Step 3: Cross multiply
    728,657.20x = 1,092,402.60 × 307,586.80
  4. Step 4: Simplify right side
    728,657.20x = 336,008,620,045.68
  5. Step 5: Solve for x
    x = 336,008,620,045.68/728,657.20
  6. Step 6: Final answer
    x = 461,134.01

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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.