Home / 1,271,136.65-1,754,191.62-690,359.65

Finding the Fourth Proportional to 1,271,136.65, 1,754,191.62 and 690,359.65

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Solution

The fourth proportional to 1,271,136.65, 1,754,191.62 and 690,359.65 is: 952,708.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,136.65 : 1,754,191.62 = 690,359.65 : x
  2. Step 2: Convert to fraction form
    1,271,136.65/1,754,191.62 = 690,359.65/x
  3. Step 3: Cross multiply
    1,271,136.65x = 1,754,191.62 × 690,359.65
  4. Step 4: Simplify right side
    1,271,136.65x = 1,211,023,108,430.65
  5. Step 5: Solve for x
    x = 1,211,023,108,430.65/1,271,136.65
  6. Step 6: Final answer
    x = 952,708.83

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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.