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Finding the Fourth Proportional to 499,967.37, 690,044.77 and 282,242.41

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Solution

The fourth proportional to 499,967.37, 690,044.77 and 282,242.41 is: 389,545.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,967.37 : 690,044.77 = 282,242.41 : x
  2. Step 2: Convert to fraction form
    499,967.37/690,044.77 = 282,242.41/x
  3. Step 3: Cross multiply
    499,967.37x = 690,044.77 × 282,242.41
  4. Step 4: Simplify right side
    499,967.37x = 194,759,897,520.39
  5. Step 5: Solve for x
    x = 194,759,897,520.39/499,967.37
  6. Step 6: Final answer
    x = 389,545.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.