Home / 991,632.22-1,487,448.66-271,981.42

Finding the Fourth Proportional to 991,632.22, 1,487,448.66 and 271,981.42

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Solution

The fourth proportional to 991,632.22, 1,487,448.66 and 271,981.42 is: 407,972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,632.22 : 1,487,448.66 = 271,981.42 : x
  2. Step 2: Convert to fraction form
    991,632.22/1,487,448.66 = 271,981.42/x
  3. Step 3: Cross multiply
    991,632.22x = 1,487,448.66 × 271,981.42
  4. Step 4: Simplify right side
    991,632.22x = 404,558,391,286.65
  5. Step 5: Solve for x
    x = 404,558,391,286.65/991,632.22
  6. Step 6: Final answer
    x = 407,972.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.