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Finding the Fourth Proportional to 432,502.77, 648,892.98 and 207,879.50

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Solution

The fourth proportional to 432,502.77, 648,892.98 and 207,879.50 is: 311,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,502.77 : 648,892.98 = 207,879.50 : x
  2. Step 2: Convert to fraction form
    432,502.77/648,892.98 = 207,879.50/x
  3. Step 3: Cross multiply
    432,502.77x = 648,892.98 × 207,879.50
  4. Step 4: Simplify right side
    432,502.77x = 134,891,545,704.21
  5. Step 5: Solve for x
    x = 134,891,545,704.21/432,502.77
  6. Step 6: Final answer
    x = 311,885.97

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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.