Home / 782,571.60-1,174,246.20-309,272.40

Finding the Fourth Proportional to 782,571.60, 1,174,246.20 and 309,272.40

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Solution

The fourth proportional to 782,571.60, 1,174,246.20 and 309,272.40 is: 464,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,571.60 : 1,174,246.20 = 309,272.40 : x
  2. Step 2: Convert to fraction form
    782,571.60/1,174,246.20 = 309,272.40/x
  3. Step 3: Cross multiply
    782,571.60x = 1,174,246.20 × 309,272.40
  4. Step 4: Simplify right side
    782,571.60x = 363,161,940,464.88
  5. Step 5: Solve for x
    x = 363,161,940,464.88/782,571.60
  6. Step 6: Final answer
    x = 464,062.25

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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.