Home / 3,125,319.59-4,313,614.65-1,902,019.78

Finding the Fourth Proportional to 3,125,319.59, 4,313,614.65 and 1,902,019.78

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Solution

The fourth proportional to 3,125,319.59, 4,313,614.65 and 1,902,019.78 is: 2,625,197.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125,319.59 : 4,313,614.65 = 1,902,019.78 : x
  2. Step 2: Convert to fraction form
    3,125,319.59/4,313,614.65 = 1,902,019.78/x
  3. Step 3: Cross multiply
    3,125,319.59x = 4,313,614.65 × 1,902,019.78
  4. Step 4: Simplify right side
    3,125,319.59x = 8,204,580,372,292.00
  5. Step 5: Solve for x
    x = 8,204,580,372,292.00/3,125,319.59
  6. Step 6: Final answer
    x = 2,625,197.24

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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.