Home / 1,271,390.29-1,754,550.25-690,613.25

Finding the Fourth Proportional to 1,271,390.29, 1,754,550.25 and 690,613.25

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Solution

The fourth proportional to 1,271,390.29, 1,754,550.25 and 690,613.25 is: 953,063.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,390.29 : 1,754,550.25 = 690,613.25 : x
  2. Step 2: Convert to fraction form
    1,271,390.29/1,754,550.25 = 690,613.25/x
  3. Step 3: Cross multiply
    1,271,390.29x = 1,754,550.25 × 690,613.25
  4. Step 4: Simplify right side
    1,271,390.29x = 1,211,715,639,941.53
  5. Step 5: Solve for x
    x = 1,211,715,639,941.53/1,271,390.29
  6. Step 6: Final answer
    x = 953,063.47

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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.