Home / 328,724.73-493,087.10-79,406.73

Finding the Fourth Proportional to 328,724.73, 493,087.10 and 79,406.73

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Solution

The fourth proportional to 328,724.73, 493,087.10 and 79,406.73 is: 119,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,724.73 : 493,087.10 = 79,406.73 : x
  2. Step 2: Convert to fraction form
    328,724.73/493,087.10 = 79,406.73/x
  3. Step 3: Cross multiply
    328,724.73x = 493,087.10 × 79,406.73
  4. Step 4: Simplify right side
    328,724.73x = 39,154,433,819.15
  5. Step 5: Solve for x
    x = 39,154,433,819.15/328,724.73
  6. Step 6: Final answer
    x = 119,110.10

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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.