Home / 1,129,397.94-1,694,143.08-287,971.56

Finding the Fourth Proportional to 1,129,397.94, 1,694,143.08 and 287,971.56

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Solution

The fourth proportional to 1,129,397.94, 1,694,143.08 and 287,971.56 is: 431,969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,397.94 : 1,694,143.08 = 287,971.56 : x
  2. Step 2: Convert to fraction form
    1,129,397.94/1,694,143.08 = 287,971.56/x
  3. Step 3: Cross multiply
    1,129,397.94x = 1,694,143.08 × 287,971.56
  4. Step 4: Simplify right side
    1,129,397.94x = 487,865,025,610.81
  5. Step 5: Solve for x
    x = 487,865,025,610.81/1,129,397.94
  6. Step 6: Final answer
    x = 431,969.11

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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.