Home / 1,129,645.76-1,694,857.44-708,428.48

Finding the Fourth Proportional to 1,129,645.76, 1,694,857.44 and 708,428.48

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Solution

The fourth proportional to 1,129,645.76, 1,694,857.44 and 708,428.48 is: 1,062,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,645.76 : 1,694,857.44 = 708,428.48 : x
  2. Step 2: Convert to fraction form
    1,129,645.76/1,694,857.44 = 708,428.48/x
  3. Step 3: Cross multiply
    1,129,645.76x = 1,694,857.44 × 708,428.48
  4. Step 4: Simplify right side
    1,129,645.76x = 1,200,685,280,035.89
  5. Step 5: Solve for x
    x = 1,200,685,280,035.89/1,129,645.76
  6. Step 6: Final answer
    x = 1,062,886.55

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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.