Home / 878,480.80-1,317,721.20-523,895.20

Finding the Fourth Proportional to 878,480.80, 1,317,721.20 and 523,895.20

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Solution

The fourth proportional to 878,480.80, 1,317,721.20 and 523,895.20 is: 785,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,480.80 : 1,317,721.20 = 523,895.20 : x
  2. Step 2: Convert to fraction form
    878,480.80/1,317,721.20 = 523,895.20/x
  3. Step 3: Cross multiply
    878,480.80x = 1,317,721.20 × 523,895.20
  4. Step 4: Simplify right side
    878,480.80x = 690,347,811,618.24
  5. Step 5: Solve for x
    x = 690,347,811,618.24/878,480.80
  6. Step 6: Final answer
    x = 785,842.80

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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.