Home / 858,113.60-1,286,587.20-325,554.80

Finding the Fourth Proportional to 858,113.60, 1,286,587.20 and 325,554.80

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Solution

The fourth proportional to 858,113.60, 1,286,587.20 and 325,554.80 is: 488,110.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,113.60 : 1,286,587.20 = 325,554.80 : x
  2. Step 2: Convert to fraction form
    858,113.60/1,286,587.20 = 325,554.80/x
  3. Step 3: Cross multiply
    858,113.60x = 1,286,587.20 × 325,554.80
  4. Step 4: Simplify right side
    858,113.60x = 418,854,638,578.56
  5. Step 5: Solve for x
    x = 418,854,638,578.56/858,113.60
  6. Step 6: Final answer
    x = 488,110.94

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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.