Home / 769,439.10-1,154,158.65-486,003.90

Finding the Fourth Proportional to 769,439.10, 1,154,158.65 and 486,003.90

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Solution

The fourth proportional to 769,439.10, 1,154,158.65 and 486,003.90 is: 729,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,439.10 : 1,154,158.65 = 486,003.90 : x
  2. Step 2: Convert to fraction form
    769,439.10/1,154,158.65 = 486,003.90/x
  3. Step 3: Cross multiply
    769,439.10x = 1,154,158.65 × 486,003.90
  4. Step 4: Simplify right side
    769,439.10x = 560,925,605,118.74
  5. Step 5: Solve for x
    x = 560,925,605,118.74/769,439.10
  6. Step 6: Final answer
    x = 729,005.85

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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.