Home / 326,675.78-489,926.19-89,962.19

Finding the Fourth Proportional to 326,675.78, 489,926.19 and 89,962.19

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Solution

The fourth proportional to 326,675.78, 489,926.19 and 89,962.19 is: 134,919.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,675.78 : 489,926.19 = 89,962.19 : x
  2. Step 2: Convert to fraction form
    326,675.78/489,926.19 = 89,962.19/x
  3. Step 3: Cross multiply
    326,675.78x = 489,926.19 × 89,962.19
  4. Step 4: Simplify right side
    326,675.78x = 44,074,832,990.76
  5. Step 5: Solve for x
    x = 44,074,832,990.76/326,675.78
  6. Step 6: Final answer
    x = 134,919.19

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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.