Home / 1,160,263.65-1,601,138.97-643,987.38

Finding the Fourth Proportional to 1,160,263.65, 1,601,138.97 and 643,987.38

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Solution

The fourth proportional to 1,160,263.65, 1,601,138.97 and 643,987.38 is: 888,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160,263.65 : 1,601,138.97 = 643,987.38 : x
  2. Step 2: Convert to fraction form
    1,160,263.65/1,601,138.97 = 643,987.38/x
  3. Step 3: Cross multiply
    1,160,263.65x = 1,601,138.97 × 643,987.38
  4. Step 4: Simplify right side
    1,160,263.65x = 1,031,113,290,306.20
  5. Step 5: Solve for x
    x = 1,031,113,290,306.20/1,160,263.65
  6. Step 6: Final answer
    x = 888,688.78

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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.