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Finding the Fourth Proportional to 578,081.10, 867,121.65 and 550,524.90

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Solution

The fourth proportional to 578,081.10, 867,121.65 and 550,524.90 is: 825,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,081.10 : 867,121.65 = 550,524.90 : x
  2. Step 2: Convert to fraction form
    578,081.10/867,121.65 = 550,524.90/x
  3. Step 3: Cross multiply
    578,081.10x = 867,121.65 × 550,524.90
  4. Step 4: Simplify right side
    578,081.10x = 477,372,059,654.09
  5. Step 5: Solve for x
    x = 477,372,059,654.09/578,081.10
  6. Step 6: Final answer
    x = 825,787.35

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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.