Home / 1,332,310.36-1,998,447.03-321,423.77

Finding the Fourth Proportional to 1,332,310.36, 1,998,447.03 and 321,423.77

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Solution

The fourth proportional to 1,332,310.36, 1,998,447.03 and 321,423.77 is: 482,131.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,310.36 : 1,998,447.03 = 321,423.77 : x
  2. Step 2: Convert to fraction form
    1,332,310.36/1,998,447.03 = 321,423.77/x
  3. Step 3: Cross multiply
    1,332,310.36x = 1,998,447.03 × 321,423.77
  4. Step 4: Simplify right side
    1,332,310.36x = 642,348,386,145.15
  5. Step 5: Solve for x
    x = 642,348,386,145.15/1,332,310.36
  6. Step 6: Final answer
    x = 482,131.19

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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.