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Finding the Fourth Proportional to 479,867.52, 720,244.17 and 243,376.32

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Solution

The fourth proportional to 479,867.52, 720,244.17 and 243,376.32 is: 365,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,867.52 : 720,244.17 = 243,376.32 : x
  2. Step 2: Convert to fraction form
    479,867.52/720,244.17 = 243,376.32/x
  3. Step 3: Cross multiply
    479,867.52x = 720,244.17 × 243,376.32
  4. Step 4: Simplify right side
    479,867.52x = 175,290,375,596.05
  5. Step 5: Solve for x
    x = 175,290,375,596.05/479,867.52
  6. Step 6: Final answer
    x = 365,289.10

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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.