Home / 862,868.40-1,294,302.60-442,964.40

Finding the Fourth Proportional to 862,868.40, 1,294,302.60 and 442,964.40

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Solution

The fourth proportional to 862,868.40, 1,294,302.60 and 442,964.40 is: 664,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,868.40 : 1,294,302.60 = 442,964.40 : x
  2. Step 2: Convert to fraction form
    862,868.40/1,294,302.60 = 442,964.40/x
  3. Step 3: Cross multiply
    862,868.40x = 1,294,302.60 × 442,964.40
  4. Step 4: Simplify right side
    862,868.40x = 573,329,974,627.44
  5. Step 5: Solve for x
    x = 573,329,974,627.44/862,868.40
  6. Step 6: Final answer
    x = 664,446.60

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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.