Home / 402,629.60-605,110.80-395,631.20

Finding the Fourth Proportional to 402,629.60, 605,110.80 and 395,631.20

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Solution

The fourth proportional to 402,629.60, 605,110.80 and 395,631.20 is: 594,592.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,629.60 : 605,110.80 = 395,631.20 : x
  2. Step 2: Convert to fraction form
    402,629.60/605,110.80 = 395,631.20/x
  3. Step 3: Cross multiply
    402,629.60x = 605,110.80 × 395,631.20
  4. Step 4: Simplify right side
    402,629.60x = 239,400,711,936.96
  5. Step 5: Solve for x
    x = 239,400,711,936.96/402,629.60
  6. Step 6: Final answer
    x = 594,592.93

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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.