Home / 921,141-1,271,182.77-539,175.96

Finding the Fourth Proportional to 921,141, 1,271,182.77 and 539,175.96

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Solution

The fourth proportional to 921,141, 1,271,182.77 and 539,175.96 is: 744,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,141 : 1,271,182.77 = 539,175.96 : x
  2. Step 2: Convert to fraction form
    921,141/1,271,182.77 = 539,175.96/x
  3. Step 3: Cross multiply
    921,141x = 1,271,182.77 × 539,175.96
  4. Step 4: Simplify right side
    921,141x = 685,391,190,350.21
  5. Step 5: Solve for x
    x = 685,391,190,350.21/921,141
  6. Step 6: Final answer
    x = 744,067.62

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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.