Home / 1,120,500.60-1,680,750.94-410,240.76

Finding the Fourth Proportional to 1,120,500.60, 1,680,750.94 and 410,240.76

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Solution

The fourth proportional to 1,120,500.60, 1,680,750.94 and 410,240.76 is: 615,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,500.60 : 1,680,750.94 = 410,240.76 : x
  2. Step 2: Convert to fraction form
    1,120,500.60/1,680,750.94 = 410,240.76/x
  3. Step 3: Cross multiply
    1,120,500.60x = 1,680,750.94 × 410,240.76
  4. Step 4: Simplify right side
    1,120,500.60x = 689,512,542,996.32
  5. Step 5: Solve for x
    x = 689,512,542,996.32/1,120,500.60
  6. Step 6: Final answer
    x = 615,361.15

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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.