Home / 782,977.20-1,174,465.80-409,114.80

Finding the Fourth Proportional to 782,977.20, 1,174,465.80 and 409,114.80

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Solution

The fourth proportional to 782,977.20, 1,174,465.80 and 409,114.80 is: 613,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,977.20 : 1,174,465.80 = 409,114.80 : x
  2. Step 2: Convert to fraction form
    782,977.20/1,174,465.80 = 409,114.80/x
  3. Step 3: Cross multiply
    782,977.20x = 1,174,465.80 × 409,114.80
  4. Step 4: Simplify right side
    782,977.20x = 480,491,340,873.84
  5. Step 5: Solve for x
    x = 480,491,340,873.84/782,977.20
  6. Step 6: Final answer
    x = 613,672.20

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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.