Home / 800,080.38-1,103,590.68-513,145.98

Finding the Fourth Proportional to 800,080.38, 1,103,590.68 and 513,145.98

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Solution

The fourth proportional to 800,080.38, 1,103,590.68 and 513,145.98 is: 707,807.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,080.38 : 1,103,590.68 = 513,145.98 : x
  2. Step 2: Convert to fraction form
    800,080.38/1,103,590.68 = 513,145.98/x
  3. Step 3: Cross multiply
    800,080.38x = 1,103,590.68 × 513,145.98
  4. Step 4: Simplify right side
    800,080.38x = 566,303,121,007.47
  5. Step 5: Solve for x
    x = 566,303,121,007.47/800,080.38
  6. Step 6: Final answer
    x = 707,807.78

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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.