Home / 3,121,019.12-4,307,356.68-1,762,979.60

Finding the Fourth Proportional to 3,121,019.12, 4,307,356.68 and 1,762,979.60

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Solution

The fourth proportional to 3,121,019.12, 4,307,356.68 and 1,762,979.60 is: 2,433,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,019.12 : 4,307,356.68 = 1,762,979.60 : x
  2. Step 2: Convert to fraction form
    3,121,019.12/4,307,356.68 = 1,762,979.60/x
  3. Step 3: Cross multiply
    3,121,019.12x = 4,307,356.68 × 1,762,979.60
  4. Step 4: Simplify right side
    3,121,019.12x = 7,593,781,956,763.73
  5. Step 5: Solve for x
    x = 7,593,781,956,763.73/3,121,019.12
  6. Step 6: Final answer
    x = 2,433,109.72

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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.