Home / 1,271,391.29-1,754,551.63-690,614.25

Finding the Fourth Proportional to 1,271,391.29, 1,754,551.63 and 690,614.25

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Solution

The fourth proportional to 1,271,391.29, 1,754,551.63 and 690,614.25 is: 953,064.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,391.29 : 1,754,551.63 = 690,614.25 : x
  2. Step 2: Convert to fraction form
    1,271,391.29/1,754,551.63 = 690,614.25/x
  3. Step 3: Cross multiply
    1,271,391.29x = 1,754,551.63 × 690,614.25
  4. Step 4: Simplify right side
    1,271,391.29x = 1,211,718,358,038.73
  5. Step 5: Solve for x
    x = 1,211,718,358,038.73/1,271,391.29
  6. Step 6: Final answer
    x = 953,064.86

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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.