Home / 678,657.60-1,017,338.40-252,079.20

Finding the Fourth Proportional to 678,657.60, 1,017,338.40 and 252,079.20

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Solution

The fourth proportional to 678,657.60, 1,017,338.40 and 252,079.20 is: 377,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,657.60 : 1,017,338.40 = 252,079.20 : x
  2. Step 2: Convert to fraction form
    678,657.60/1,017,338.40 = 252,079.20/x
  3. Step 3: Cross multiply
    678,657.60x = 1,017,338.40 × 252,079.20
  4. Step 4: Simplify right side
    678,657.60x = 256,449,850,001.28
  5. Step 5: Solve for x
    x = 256,449,850,001.28/678,657.60
  6. Step 6: Final answer
    x = 377,878.11

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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.