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Finding the Fourth Proportional to 395,404.40, 591,724.20 and 362,226.80

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Solution

The fourth proportional to 395,404.40, 591,724.20 and 362,226.80 is: 542,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,404.40 : 591,724.20 = 362,226.80 : x
  2. Step 2: Convert to fraction form
    395,404.40/591,724.20 = 362,226.80/x
  3. Step 3: Cross multiply
    395,404.40x = 591,724.20 × 362,226.80
  4. Step 4: Simplify right side
    395,404.40x = 214,338,363,448.56
  5. Step 5: Solve for x
    x = 214,338,363,448.56/395,404.40
  6. Step 6: Final answer
    x = 542,073.79

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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.