Home / 1,938,287.72-2,904,231.18-1,126,392.68

Finding the Fourth Proportional to 1,938,287.72, 2,904,231.18 and 1,126,392.68

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Solution

The fourth proportional to 1,938,287.72, 2,904,231.18 and 1,126,392.68 is: 1,687,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,287.72 : 2,904,231.18 = 1,126,392.68 : x
  2. Step 2: Convert to fraction form
    1,938,287.72/2,904,231.18 = 1,126,392.68/x
  3. Step 3: Cross multiply
    1,938,287.72x = 2,904,231.18 × 1,126,392.68
  4. Step 4: Simplify right side
    1,938,287.72x = 3,271,304,742,179.76
  5. Step 5: Solve for x
    x = 3,271,304,742,179.76/1,938,287.72
  6. Step 6: Final answer
    x = 1,687,729.18

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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.