Home / 817,741.80-1,226,612.70-781,000.20

Finding the Fourth Proportional to 817,741.80, 1,226,612.70 and 781,000.20

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Solution

The fourth proportional to 817,741.80, 1,226,612.70 and 781,000.20 is: 1,171,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,741.80 : 1,226,612.70 = 781,000.20 : x
  2. Step 2: Convert to fraction form
    817,741.80/1,226,612.70 = 781,000.20/x
  3. Step 3: Cross multiply
    817,741.80x = 1,226,612.70 × 781,000.20
  4. Step 4: Simplify right side
    817,741.80x = 957,984,764,022.54
  5. Step 5: Solve for x
    x = 957,984,764,022.54/817,741.80
  6. Step 6: Final answer
    x = 1,171,500.30

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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.