Home / 857,798.40-1,286,689.60-218,103.52

Finding the Fourth Proportional to 857,798.40, 1,286,689.60 and 218,103.52

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Solution

The fourth proportional to 857,798.40, 1,286,689.60 and 218,103.52 is: 327,153.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,798.40 : 1,286,689.60 = 218,103.52 : x
  2. Step 2: Convert to fraction form
    857,798.40/1,286,689.60 = 218,103.52/x
  3. Step 3: Cross multiply
    857,798.40x = 1,286,689.60 × 218,103.52
  4. Step 4: Simplify right side
    857,798.40x = 280,631,530,907.39
  5. Step 5: Solve for x
    x = 280,631,530,907.39/857,798.40
  6. Step 6: Final answer
    x = 327,153.25

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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.