Home / 892,815.40-1,339,223.10-538,229.80

Finding the Fourth Proportional to 892,815.40, 1,339,223.10 and 538,229.80

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Solution

The fourth proportional to 892,815.40, 1,339,223.10 and 538,229.80 is: 807,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,815.40 : 1,339,223.10 = 538,229.80 : x
  2. Step 2: Convert to fraction form
    892,815.40/1,339,223.10 = 538,229.80/x
  3. Step 3: Cross multiply
    892,815.40x = 1,339,223.10 × 538,229.80
  4. Step 4: Simplify right side
    892,815.40x = 720,809,781,268.38
  5. Step 5: Solve for x
    x = 720,809,781,268.38/892,815.40
  6. Step 6: Final answer
    x = 807,344.70

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1.5x scale

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.