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Finding the Fourth Proportional to 539,461.20, 809,094.60 and 339,423.60

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Solution

The fourth proportional to 539,461.20, 809,094.60 and 339,423.60 is: 509,074.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,461.20 : 809,094.60 = 339,423.60 : x
  2. Step 2: Convert to fraction form
    539,461.20/809,094.60 = 339,423.60/x
  3. Step 3: Cross multiply
    539,461.20x = 809,094.60 × 339,423.60
  4. Step 4: Simplify right side
    539,461.20x = 274,625,801,872.56
  5. Step 5: Solve for x
    x = 274,625,801,872.56/539,461.20
  6. Step 6: Final answer
    x = 509,074.24

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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.