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Finding the Fourth Proportional to 539,494.40, 808,366.80 and 339,456.80

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Solution

The fourth proportional to 539,494.40, 808,366.80 and 339,456.80 is: 508,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,494.40 : 808,366.80 = 339,456.80 : x
  2. Step 2: Convert to fraction form
    539,494.40/808,366.80 = 339,456.80/x
  3. Step 3: Cross multiply
    539,494.40x = 808,366.80 × 339,456.80
  4. Step 4: Simplify right side
    539,494.40x = 274,405,607,154.24
  5. Step 5: Solve for x
    x = 274,405,607,154.24/539,494.40
  6. Step 6: Final answer
    x = 508,634.76

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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.