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Finding the Fourth Proportional to 479,884.86, 720,270.09 and 243,393.62

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Solution

The fourth proportional to 479,884.86, 720,270.09 and 243,393.62 is: 365,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,884.86 : 720,270.09 = 243,393.62 : x
  2. Step 2: Convert to fraction form
    479,884.86/720,270.09 = 243,393.62/x
  3. Step 3: Cross multiply
    479,884.86x = 720,270.09 × 243,393.62
  4. Step 4: Simplify right side
    479,884.86x = 175,309,140,981.48
  5. Step 5: Solve for x
    x = 175,309,140,981.48/479,884.86
  6. Step 6: Final answer
    x = 365,315.01

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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.