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Finding the Fourth Proportional to 539,426, 809,177.88 and 207,002

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Solution

The fourth proportional to 539,426, 809,177.88 and 207,002 is: 310,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,426 : 809,177.88 = 207,002 : x
  2. Step 2: Convert to fraction form
    539,426/809,177.88 = 207,002/x
  3. Step 3: Cross multiply
    539,426x = 809,177.88 × 207,002
  4. Step 4: Simplify right side
    539,426x = 167,501,439,515.76
  5. Step 5: Solve for x
    x = 167,501,439,515.76/539,426
  6. Step 6: Final answer
    x = 310,517.92

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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.