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Finding the Fourth Proportional to 395,149.20, 591,411.60 and 395,149.20

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Solution

The fourth proportional to 395,149.20, 591,411.60 and 395,149.20 is: 591,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,149.20 : 591,411.60 = 395,149.20 : x
  2. Step 2: Convert to fraction form
    395,149.20/591,411.60 = 395,149.20/x
  3. Step 3: Cross multiply
    395,149.20x = 591,411.60 × 395,149.20
  4. Step 4: Simplify right side
    395,149.20x = 233,695,820,610.72
  5. Step 5: Solve for x
    x = 233,695,820,610.72/395,149.20
  6. Step 6: Final answer
    x = 591,411.60

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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.