Home / 578,937.04-869,736.48-408,551.20

Finding the Fourth Proportional to 578,937.04, 869,736.48 and 408,551.20

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Solution

The fourth proportional to 578,937.04, 869,736.48 and 408,551.20 is: 613,766.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,937.04 : 869,736.48 = 408,551.20 : x
  2. Step 2: Convert to fraction form
    578,937.04/869,736.48 = 408,551.20/x
  3. Step 3: Cross multiply
    578,937.04x = 869,736.48 × 408,551.20
  4. Step 4: Simplify right side
    578,937.04x = 355,331,882,587.78
  5. Step 5: Solve for x
    x = 355,331,882,587.78/578,937.04
  6. Step 6: Final answer
    x = 613,766.02

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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.