Home / 991,632.72-1,487,449.41-271,981.92

Finding the Fourth Proportional to 991,632.72, 1,487,449.41 and 271,981.92

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Solution

The fourth proportional to 991,632.72, 1,487,449.41 and 271,981.92 is: 407,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,632.72 : 1,487,449.41 = 271,981.92 : x
  2. Step 2: Convert to fraction form
    991,632.72/1,487,449.41 = 271,981.92/x
  3. Step 3: Cross multiply
    991,632.72x = 1,487,449.41 × 271,981.92
  4. Step 4: Simplify right side
    991,632.72x = 404,559,346,434.67
  5. Step 5: Solve for x
    x = 404,559,346,434.67/991,632.72
  6. Step 6: Final answer
    x = 407,972.97

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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.