Home / 1,246,276.60-1,869,414.90-771,422.20

Finding the Fourth Proportional to 1,246,276.60, 1,869,414.90 and 771,422.20

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Solution

The fourth proportional to 1,246,276.60, 1,869,414.90 and 771,422.20 is: 1,157,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,276.60 : 1,869,414.90 = 771,422.20 : x
  2. Step 2: Convert to fraction form
    1,246,276.60/1,869,414.90 = 771,422.20/x
  3. Step 3: Cross multiply
    1,246,276.60x = 1,869,414.90 × 771,422.20
  4. Step 4: Simplify right side
    1,246,276.60x = 1,442,108,154,870.78
  5. Step 5: Solve for x
    x = 1,442,108,154,870.78/1,246,276.60
  6. Step 6: Final answer
    x = 1,157,133.30

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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.