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Finding the Fourth Proportional to 605,230.80, 907,846.20 and 487,132.80

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Solution

The fourth proportional to 605,230.80, 907,846.20 and 487,132.80 is: 730,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,230.80 : 907,846.20 = 487,132.80 : x
  2. Step 2: Convert to fraction form
    605,230.80/907,846.20 = 487,132.80/x
  3. Step 3: Cross multiply
    605,230.80x = 907,846.20 × 487,132.80
  4. Step 4: Simplify right side
    605,230.80x = 442,241,661,375.36
  5. Step 5: Solve for x
    x = 442,241,661,375.36/605,230.80
  6. Step 6: Final answer
    x = 730,699.20

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1.5x scale

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.