Home / 691,200-1,036,859.40-192,564

Finding the Fourth Proportional to 691,200, 1,036,859.40 and 192,564

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Solution

The fourth proportional to 691,200, 1,036,859.40 and 192,564 is: 288,862.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,200 : 1,036,859.40 = 192,564 : x
  2. Step 2: Convert to fraction form
    691,200/1,036,859.40 = 192,564/x
  3. Step 3: Cross multiply
    691,200x = 1,036,859.40 × 192,564
  4. Step 4: Simplify right side
    691,200x = 199,661,793,501.60
  5. Step 5: Solve for x
    x = 199,661,793,501.60/691,200
  6. Step 6: Final answer
    x = 288,862.55

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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.