Home / 688,255.20-949,765.79-382,350.83

Finding the Fourth Proportional to 688,255.20, 949,765.79 and 382,350.83

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Solution

The fourth proportional to 688,255.20, 949,765.79 and 382,350.83 is: 527,629.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,255.20 : 949,765.79 = 382,350.83 : x
  2. Step 2: Convert to fraction form
    688,255.20/949,765.79 = 382,350.83/x
  3. Step 3: Cross multiply
    688,255.20x = 949,765.79 × 382,350.83
  4. Step 4: Simplify right side
    688,255.20x = 363,143,734,319.15
  5. Step 5: Solve for x
    x = 363,143,734,319.15/688,255.20
  6. Step 6: Final answer
    x = 527,629.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.