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Finding the Fourth Proportional to 539,125.60, 809,271.60 and 339,671.20

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Solution

The fourth proportional to 539,125.60, 809,271.60 and 339,671.20 is: 509,874.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,125.60 : 809,271.60 = 339,671.20 : x
  2. Step 2: Convert to fraction form
    539,125.60/809,271.60 = 339,671.20/x
  3. Step 3: Cross multiply
    539,125.60x = 809,271.60 × 339,671.20
  4. Step 4: Simplify right side
    539,125.60x = 274,886,255,497.92
  5. Step 5: Solve for x
    x = 274,886,255,497.92/539,125.60
  6. Step 6: Final answer
    x = 509,874.24

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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.