Home / 678,084.60-1,017,457.26-278,845.32

Finding the Fourth Proportional to 678,084.60, 1,017,457.26 and 278,845.32

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Solution

The fourth proportional to 678,084.60, 1,017,457.26 and 278,845.32 is: 418,403.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,084.60 : 1,017,457.26 = 278,845.32 : x
  2. Step 2: Convert to fraction form
    678,084.60/1,017,457.26 = 278,845.32/x
  3. Step 3: Cross multiply
    678,084.60x = 1,017,457.26 × 278,845.32
  4. Step 4: Simplify right side
    678,084.60x = 283,713,195,251.02
  5. Step 5: Solve for x
    x = 283,713,195,251.02/678,084.60
  6. Step 6: Final answer
    x = 418,403.83

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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.