Home / 1,271,170.79-1,754,228.35-690,405.26

Finding the Fourth Proportional to 1,271,170.79, 1,754,228.35 and 690,405.26

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Solution

The fourth proportional to 1,271,170.79, 1,754,228.35 and 690,405.26 is: 952,766.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,170.79 : 1,754,228.35 = 690,405.26 : x
  2. Step 2: Convert to fraction form
    1,271,170.79/1,754,228.35 = 690,405.26/x
  3. Step 3: Cross multiply
    1,271,170.79x = 1,754,228.35 × 690,405.26
  4. Step 4: Simplify right side
    1,271,170.79x = 1,211,128,482,040.52
  5. Step 5: Solve for x
    x = 1,211,128,482,040.52/1,271,170.79
  6. Step 6: Final answer
    x = 952,766.13

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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.