Home / 2,586,711.60-3,878,224.20-988,657.20

Finding the Fourth Proportional to 2,586,711.60, 3,878,224.20 and 988,657.20

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Solution

The fourth proportional to 2,586,711.60, 3,878,224.20 and 988,657.20 is: 1,482,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586,711.60 : 3,878,224.20 = 988,657.20 : x
  2. Step 2: Convert to fraction form
    2,586,711.60/3,878,224.20 = 988,657.20/x
  3. Step 3: Cross multiply
    2,586,711.60x = 3,878,224.20 × 988,657.20
  4. Step 4: Simplify right side
    2,586,711.60x = 3,834,234,278,544.24
  5. Step 5: Solve for x
    x = 3,834,234,278,544.24/2,586,711.60
  6. Step 6: Final answer
    x = 1,482,281.32

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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.