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Finding the Fourth Proportional to 578,077.60, 866,727.60 and 308,250.40

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Solution

The fourth proportional to 578,077.60, 866,727.60 and 308,250.40 is: 462,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,077.60 : 866,727.60 = 308,250.40 : x
  2. Step 2: Convert to fraction form
    578,077.60/866,727.60 = 308,250.40/x
  3. Step 3: Cross multiply
    578,077.60x = 866,727.60 × 308,250.40
  4. Step 4: Simplify right side
    578,077.60x = 267,169,129,391.04
  5. Step 5: Solve for x
    x = 267,169,129,391.04/578,077.60
  6. Step 6: Final answer
    x = 462,168.28

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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.