Home / 663,135.20-995,739.60-383,199.20

Finding the Fourth Proportional to 663,135.20, 995,739.60 and 383,199.20

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Solution

The fourth proportional to 663,135.20, 995,739.60 and 383,199.20 is: 575,397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,135.20 : 995,739.60 = 383,199.20 : x
  2. Step 2: Convert to fraction form
    663,135.20/995,739.60 = 383,199.20/x
  3. Step 3: Cross multiply
    663,135.20x = 995,739.60 × 383,199.20
  4. Step 4: Simplify right side
    663,135.20x = 381,566,618,128.32
  5. Step 5: Solve for x
    x = 381,566,618,128.32/663,135.20
  6. Step 6: Final answer
    x = 575,397.93

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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.