Home / 857,801.40-1,286,694.10-218,106.52

Finding the Fourth Proportional to 857,801.40, 1,286,694.10 and 218,106.52

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Solution

The fourth proportional to 857,801.40, 1,286,694.10 and 218,106.52 is: 327,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,801.40 : 1,286,694.10 = 218,106.52 : x
  2. Step 2: Convert to fraction form
    857,801.40/1,286,694.10 = 218,106.52/x
  3. Step 3: Cross multiply
    857,801.40x = 1,286,694.10 × 218,106.52
  4. Step 4: Simplify right side
    857,801.40x = 280,636,372,455.53
  5. Step 5: Solve for x
    x = 280,636,372,455.53/857,801.40
  6. Step 6: Final answer
    x = 327,157.75

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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.