Home / 866,145.26-1,195,288.19-478,986.88

Finding the Fourth Proportional to 866,145.26, 1,195,288.19 and 478,986.88

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Solution

The fourth proportional to 866,145.26, 1,195,288.19 and 478,986.88 is: 661,006.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,145.26 : 1,195,288.19 = 478,986.88 : x
  2. Step 2: Convert to fraction form
    866,145.26/1,195,288.19 = 478,986.88/x
  3. Step 3: Cross multiply
    866,145.26x = 1,195,288.19 × 478,986.88
  4. Step 4: Simplify right side
    866,145.26x = 572,527,360,828.95
  5. Step 5: Solve for x
    x = 572,527,360,828.95/866,145.26
  6. Step 6: Final answer
    x = 661,006.17

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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.