Home / 1,295,128.75-1,943,097.72-442,220.62

Finding the Fourth Proportional to 1,295,128.75, 1,943,097.72 and 442,220.62

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Solution

The fourth proportional to 1,295,128.75, 1,943,097.72 and 442,220.62 is: 663,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,128.75 : 1,943,097.72 = 442,220.62 : x
  2. Step 2: Convert to fraction form
    1,295,128.75/1,943,097.72 = 442,220.62/x
  3. Step 3: Cross multiply
    1,295,128.75x = 1,943,097.72 × 442,220.62
  4. Step 4: Simplify right side
    1,295,128.75x = 859,277,876,247.88
  5. Step 5: Solve for x
    x = 859,277,876,247.88/1,295,128.75
  6. Step 6: Final answer
    x = 663,469.08

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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.