Home / 724,757.10-1,086,763.77-383,384.78

Finding the Fourth Proportional to 724,757.10, 1,086,763.77 and 383,384.78

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Solution

The fourth proportional to 724,757.10, 1,086,763.77 and 383,384.78 is: 574,880.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,757.10 : 1,086,763.77 = 383,384.78 : x
  2. Step 2: Convert to fraction form
    724,757.10/1,086,763.77 = 383,384.78/x
  3. Step 3: Cross multiply
    724,757.10x = 1,086,763.77 × 383,384.78
  4. Step 4: Simplify right side
    724,757.10x = 416,648,683,439.60
  5. Step 5: Solve for x
    x = 416,648,683,439.60/724,757.10
  6. Step 6: Final answer
    x = 574,880.44

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Double scale
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1.5x scale

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.