Home / 691,799.54-1,036,723.86-326,671.56

Finding the Fourth Proportional to 691,799.54, 1,036,723.86 and 326,671.56

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Solution

The fourth proportional to 691,799.54, 1,036,723.86 and 326,671.56 is: 489,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,799.54 : 1,036,723.86 = 326,671.56 : x
  2. Step 2: Convert to fraction form
    691,799.54/1,036,723.86 = 326,671.56/x
  3. Step 3: Cross multiply
    691,799.54x = 1,036,723.86 × 326,671.56
  4. Step 4: Simplify right side
    691,799.54x = 338,668,200,635.42
  5. Step 5: Solve for x
    x = 338,668,200,635.42/691,799.54
  6. Step 6: Final answer
    x = 489,546.73

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1.5x scale

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.