Home / 916,811.80-1,375,217.70-834,143.20

Finding the Fourth Proportional to 916,811.80, 1,375,217.70 and 834,143.20

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Solution

The fourth proportional to 916,811.80, 1,375,217.70 and 834,143.20 is: 1,251,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,811.80 : 1,375,217.70 = 834,143.20 : x
  2. Step 2: Convert to fraction form
    916,811.80/1,375,217.70 = 834,143.20/x
  3. Step 3: Cross multiply
    916,811.80x = 1,375,217.70 × 834,143.20
  4. Step 4: Simplify right side
    916,811.80x = 1,147,128,492,974.64
  5. Step 5: Solve for x
    x = 1,147,128,492,974.64/916,811.80
  6. Step 6: Final answer
    x = 1,251,214.80

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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.