Home / 1,271,555.33-1,754,747.90-690,778.85

Finding the Fourth Proportional to 1,271,555.33, 1,754,747.90 and 690,778.85

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Solution

The fourth proportional to 1,271,555.33, 1,754,747.90 and 690,778.85 is: 953,275.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,555.33 : 1,754,747.90 = 690,778.85 : x
  2. Step 2: Convert to fraction form
    1,271,555.33/1,754,747.90 = 690,778.85/x
  3. Step 3: Cross multiply
    1,271,555.33x = 1,754,747.90 × 690,778.85
  4. Step 4: Simplify right side
    1,271,555.33x = 1,212,142,724,174.28
  5. Step 5: Solve for x
    x = 1,212,142,724,174.28/1,271,555.33
  6. Step 6: Final answer
    x = 953,275.65

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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.