Home / 731,607.20-1,099,743.60-689,616.80

Finding the Fourth Proportional to 731,607.20, 1,099,743.60 and 689,616.80

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Solution

The fourth proportional to 731,607.20, 1,099,743.60 and 689,616.80 is: 1,036,624.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,607.20 : 1,099,743.60 = 689,616.80 : x
  2. Step 2: Convert to fraction form
    731,607.20/1,099,743.60 = 689,616.80/x
  3. Step 3: Cross multiply
    731,607.20x = 1,099,743.60 × 689,616.80
  4. Step 4: Simplify right side
    731,607.20x = 758,401,662,252.48
  5. Step 5: Solve for x
    x = 758,401,662,252.48/731,607.20
  6. Step 6: Final answer
    x = 1,036,624.11

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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.