Home / 3,538,961.20-5,308,445.40-879,569.20

Finding the Fourth Proportional to 3,538,961.20, 5,308,445.40 and 879,569.20

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Solution

The fourth proportional to 3,538,961.20, 5,308,445.40 and 879,569.20 is: 1,319,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538,961.20 : 5,308,445.40 = 879,569.20 : x
  2. Step 2: Convert to fraction form
    3,538,961.20/5,308,445.40 = 879,569.20/x
  3. Step 3: Cross multiply
    3,538,961.20x = 5,308,445.40 × 879,569.20
  4. Step 4: Simplify right side
    3,538,961.20x = 4,669,145,073,721.68
  5. Step 5: Solve for x
    x = 4,669,145,073,721.68/3,538,961.20
  6. Step 6: Final answer
    x = 1,319,354.69

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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.