Home / 1,284,371.76-1,772,433.02-711,449.04

Finding the Fourth Proportional to 1,284,371.76, 1,772,433.02 and 711,449.04

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Solution

The fourth proportional to 1,284,371.76, 1,772,433.02 and 711,449.04 is: 981,799.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,371.76 : 1,772,433.02 = 711,449.04 : x
  2. Step 2: Convert to fraction form
    1,284,371.76/1,772,433.02 = 711,449.04/x
  3. Step 3: Cross multiply
    1,284,371.76x = 1,772,433.02 × 711,449.04
  4. Step 4: Simplify right side
    1,284,371.76x = 1,260,995,770,543.30
  5. Step 5: Solve for x
    x = 1,260,995,770,543.30/1,284,371.76
  6. Step 6: Final answer
    x = 981,799.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.