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Finding the Fourth Proportional to 479,858.02, 720,229.88 and 243,366.78

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Solution

The fourth proportional to 479,858.02, 720,229.88 and 243,366.78 is: 365,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,858.02 : 720,229.88 = 243,366.78 : x
  2. Step 2: Convert to fraction form
    479,858.02/720,229.88 = 243,366.78/x
  3. Step 3: Cross multiply
    479,858.02x = 720,229.88 × 243,366.78
  4. Step 4: Simplify right side
    479,858.02x = 175,280,026,755.39
  5. Step 5: Solve for x
    x = 175,280,026,755.39/479,858.02
  6. Step 6: Final answer
    x = 365,274.77

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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.