Home / 3,121,727.17-4,308,000.78-1,745,128.93

Finding the Fourth Proportional to 3,121,727.17, 4,308,000.78 and 1,745,128.93

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Solution

The fourth proportional to 3,121,727.17, 4,308,000.78 and 1,745,128.93 is: 2,408,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,727.17 : 4,308,000.78 = 1,745,128.93 : x
  2. Step 2: Convert to fraction form
    3,121,727.17/4,308,000.78 = 1,745,128.93/x
  3. Step 3: Cross multiply
    3,121,727.17x = 4,308,000.78 × 1,745,128.93
  4. Step 4: Simplify right side
    3,121,727.17x = 7,518,016,791,640.57
  5. Step 5: Solve for x
    x = 7,518,016,791,640.57/3,121,727.17
  6. Step 6: Final answer
    x = 2,408,287.59

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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.