Home / 769,200.30-1,153,800.45-724,913.55

Finding the Fourth Proportional to 769,200.30, 1,153,800.45 and 724,913.55

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Solution

The fourth proportional to 769,200.30, 1,153,800.45 and 724,913.55 is: 1,087,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,200.30 : 1,153,800.45 = 724,913.55 : x
  2. Step 2: Convert to fraction form
    769,200.30/1,153,800.45 = 724,913.55/x
  3. Step 3: Cross multiply
    769,200.30x = 1,153,800.45 × 724,913.55
  4. Step 4: Simplify right side
    769,200.30x = 836,405,580,201.10
  5. Step 5: Solve for x
    x = 836,405,580,201.10/769,200.30
  6. Step 6: Final answer
    x = 1,087,370.33

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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.