Home / 862,873.70-1,294,310.55-442,969.70

Finding the Fourth Proportional to 862,873.70, 1,294,310.55 and 442,969.70

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Solution

The fourth proportional to 862,873.70, 1,294,310.55 and 442,969.70 is: 664,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,873.70 : 1,294,310.55 = 442,969.70 : x
  2. Step 2: Convert to fraction form
    862,873.70/1,294,310.55 = 442,969.70/x
  3. Step 3: Cross multiply
    862,873.70x = 1,294,310.55 × 442,969.70
  4. Step 4: Simplify right side
    862,873.70x = 573,340,356,040.34
  5. Step 5: Solve for x
    x = 573,340,356,040.34/862,873.70
  6. Step 6: Final answer
    x = 664,454.55

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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.