Home / 857,314.33-1,286,113.65-288,743.54

Finding the Fourth Proportional to 857,314.33, 1,286,113.65 and 288,743.54

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Solution

The fourth proportional to 857,314.33, 1,286,113.65 and 288,743.54 is: 433,163.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,314.33 : 1,286,113.65 = 288,743.54 : x
  2. Step 2: Convert to fraction form
    857,314.33/1,286,113.65 = 288,743.54/x
  3. Step 3: Cross multiply
    857,314.33x = 1,286,113.65 × 288,743.54
  4. Step 4: Simplify right side
    857,314.33x = 371,357,000,629.97
  5. Step 5: Solve for x
    x = 371,357,000,629.97/857,314.33
  6. Step 6: Final answer
    x = 433,163.18

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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.