Home / 3,138,450.78-4,330,934.55-1,780,294.62

Finding the Fourth Proportional to 3,138,450.78, 4,330,934.55 and 1,780,294.62

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Solution

The fourth proportional to 3,138,450.78, 4,330,934.55 and 1,780,294.62 is: 2,456,734.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,450.78 : 4,330,934.55 = 1,780,294.62 : x
  2. Step 2: Convert to fraction form
    3,138,450.78/4,330,934.55 = 1,780,294.62/x
  3. Step 3: Cross multiply
    3,138,450.78x = 4,330,934.55 × 1,780,294.62
  4. Step 4: Simplify right side
    3,138,450.78x = 7,710,339,478,937.12
  5. Step 5: Solve for x
    x = 7,710,339,478,937.12/3,138,450.78
  6. Step 6: Final answer
    x = 2,456,734.24

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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.