Home / 1,507,121.64-2,079,707.22-862,394.04

Finding the Fourth Proportional to 1,507,121.64, 2,079,707.22 and 862,394.04

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Solution

The fourth proportional to 1,507,121.64, 2,079,707.22 and 862,394.04 is: 1,190,034.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507,121.64 : 2,079,707.22 = 862,394.04 : x
  2. Step 2: Convert to fraction form
    1,507,121.64/2,079,707.22 = 862,394.04/x
  3. Step 3: Cross multiply
    1,507,121.64x = 2,079,707.22 × 862,394.04
  4. Step 4: Simplify right side
    1,507,121.64x = 1,793,527,111,472.97
  5. Step 5: Solve for x
    x = 1,793,527,111,472.97/1,507,121.64
  6. Step 6: Final answer
    x = 1,190,034.74

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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.