Home / 1,117,705.80-1,675,618.29-486,143.94

Finding the Fourth Proportional to 1,117,705.80, 1,675,618.29 and 486,143.94

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Solution

The fourth proportional to 1,117,705.80, 1,675,618.29 and 486,143.94 is: 728,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,705.80 : 1,675,618.29 = 486,143.94 : x
  2. Step 2: Convert to fraction form
    1,117,705.80/1,675,618.29 = 486,143.94/x
  3. Step 3: Cross multiply
    1,117,705.80x = 1,675,618.29 × 486,143.94
  4. Step 4: Simplify right side
    1,117,705.80x = 814,591,677,436.66
  5. Step 5: Solve for x
    x = 814,591,677,436.66/1,117,705.80
  6. Step 6: Final answer
    x = 728,806.88

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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.