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Finding the Fourth Proportional to 402,598.60, 605,064.30 and 395,600.20

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Solution

The fourth proportional to 402,598.60, 605,064.30 and 395,600.20 is: 594,546.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,598.60 : 605,064.30 = 395,600.20 : x
  2. Step 2: Convert to fraction form
    402,598.60/605,064.30 = 395,600.20/x
  3. Step 3: Cross multiply
    402,598.60x = 605,064.30 × 395,600.20
  4. Step 4: Simplify right side
    402,598.60x = 239,363,558,092.86
  5. Step 5: Solve for x
    x = 239,363,558,092.86/402,598.60
  6. Step 6: Final answer
    x = 594,546.42

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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.