Home / 1,271,272.69-1,754,369.19-690,507.16

Finding the Fourth Proportional to 1,271,272.69, 1,754,369.19 and 690,507.16

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Solution

The fourth proportional to 1,271,272.69, 1,754,369.19 and 690,507.16 is: 952,906.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,272.69 : 1,754,369.19 = 690,507.16 : x
  2. Step 2: Convert to fraction form
    1,271,272.69/1,754,369.19 = 690,507.16/x
  3. Step 3: Cross multiply
    1,271,272.69x = 1,754,369.19 × 690,507.16
  4. Step 4: Simplify right side
    1,271,272.69x = 1,211,404,489,171.36
  5. Step 5: Solve for x
    x = 1,211,404,489,171.36/1,271,272.69
  6. Step 6: Final answer
    x = 952,906.88

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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.