Home / 853,397.61-1,280,091.78-347,956.62

Finding the Fourth Proportional to 853,397.61, 1,280,091.78 and 347,956.62

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Solution

The fourth proportional to 853,397.61, 1,280,091.78 and 347,956.62 is: 521,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,397.61 : 1,280,091.78 = 347,956.62 : x
  2. Step 2: Convert to fraction form
    853,397.61/1,280,091.78 = 347,956.62/x
  3. Step 3: Cross multiply
    853,397.61x = 1,280,091.78 × 347,956.62
  4. Step 4: Simplify right side
    853,397.61x = 445,416,409,058.58
  5. Step 5: Solve for x
    x = 445,416,409,058.58/853,397.61
  6. Step 6: Final answer
    x = 521,933.04

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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.