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Finding the Fourth Proportional to 801,007.80, 1,119,311.40 and 801,007.80

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Solution

The fourth proportional to 801,007.80, 1,119,311.40 and 801,007.80 is: 1,119,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,007.80 : 1,119,311.40 = 801,007.80 : x
  2. Step 2: Convert to fraction form
    801,007.80/1,119,311.40 = 801,007.80/x
  3. Step 3: Cross multiply
    801,007.80x = 1,119,311.40 × 801,007.80
  4. Step 4: Simplify right side
    801,007.80x = 896,577,162,028.92
  5. Step 5: Solve for x
    x = 896,577,162,028.92/801,007.80
  6. Step 6: Final answer
    x = 1,119,311.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.