Home / 1,380,211.20-2,070,381.60-433,612.80

Finding the Fourth Proportional to 1,380,211.20, 2,070,381.60 and 433,612.80

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Solution

The fourth proportional to 1,380,211.20, 2,070,381.60 and 433,612.80 is: 650,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,211.20 : 2,070,381.60 = 433,612.80 : x
  2. Step 2: Convert to fraction form
    1,380,211.20/2,070,381.60 = 433,612.80/x
  3. Step 3: Cross multiply
    1,380,211.20x = 2,070,381.60 × 433,612.80
  4. Step 4: Simplify right side
    1,380,211.20x = 897,743,962,644.48
  5. Step 5: Solve for x
    x = 897,743,962,644.48/1,380,211.20
  6. Step 6: Final answer
    x = 650,439.56

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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.