Home / 1,271,873.79-1,755,103.28-728,013.87

Finding the Fourth Proportional to 1,271,873.79, 1,755,103.28 and 728,013.87

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Solution

The fourth proportional to 1,271,873.79, 1,755,103.28 and 728,013.87 is: 1,004,611.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,873.79 : 1,755,103.28 = 728,013.87 : x
  2. Step 2: Convert to fraction form
    1,271,873.79/1,755,103.28 = 728,013.87/x
  3. Step 3: Cross multiply
    1,271,873.79x = 1,755,103.28 × 728,013.87
  4. Step 4: Simplify right side
    1,271,873.79x = 1,277,739,527,482.42
  5. Step 5: Solve for x
    x = 1,277,739,527,482.42/1,271,873.79
  6. Step 6: Final answer
    x = 1,004,611.89

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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.