Home / 1,288,282.36-1,777,883.89-715,375.84

Finding the Fourth Proportional to 1,288,282.36, 1,777,883.89 and 715,375.84

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Solution

The fourth proportional to 1,288,282.36, 1,777,883.89 and 715,375.84 is: 987,248.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,282.36 : 1,777,883.89 = 715,375.84 : x
  2. Step 2: Convert to fraction form
    1,288,282.36/1,777,883.89 = 715,375.84/x
  3. Step 3: Cross multiply
    1,288,282.36x = 1,777,883.89 × 715,375.84
  4. Step 4: Simplify right side
    1,288,282.36x = 1,271,855,172,341.80
  5. Step 5: Solve for x
    x = 1,271,855,172,341.80/1,288,282.36
  6. Step 6: Final answer
    x = 987,248.77

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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.