Home / 578,480.27-868,280.14-279,171.55

Finding the Fourth Proportional to 578,480.27, 868,280.14 and 279,171.55

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Solution

The fourth proportional to 578,480.27, 868,280.14 and 279,171.55 is: 419,027.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,480.27 : 868,280.14 = 279,171.55 : x
  2. Step 2: Convert to fraction form
    578,480.27/868,280.14 = 279,171.55/x
  3. Step 3: Cross multiply
    578,480.27x = 868,280.14 × 279,171.55
  4. Step 4: Simplify right side
    578,480.27x = 242,399,112,518.02
  5. Step 5: Solve for x
    x = 242,399,112,518.02/578,480.27
  6. Step 6: Final answer
    x = 419,027.45

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1.5x scale

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.