Home / 2,289,905.90-3,438,248.70-1,281,042.80

Finding the Fourth Proportional to 2,289,905.90, 3,438,248.70 and 1,281,042.80

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Solution

The fourth proportional to 2,289,905.90, 3,438,248.70 and 1,281,042.80 is: 1,923,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289,905.90 : 3,438,248.70 = 1,281,042.80 : x
  2. Step 2: Convert to fraction form
    2,289,905.90/3,438,248.70 = 1,281,042.80/x
  3. Step 3: Cross multiply
    2,289,905.90x = 3,438,248.70 × 1,281,042.80
  4. Step 4: Simplify right side
    2,289,905.90x = 4,404,543,741,744.36
  5. Step 5: Solve for x
    x = 4,404,543,741,744.36/2,289,905.90
  6. Step 6: Final answer
    x = 1,923,460.58

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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.