Home / 853,487.54-1,280,575.57-379,848.96

Finding the Fourth Proportional to 853,487.54, 1,280,575.57 and 379,848.96

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Solution

The fourth proportional to 853,487.54, 1,280,575.57 and 379,848.96 is: 569,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,487.54 : 1,280,575.57 = 379,848.96 : x
  2. Step 2: Convert to fraction form
    853,487.54/1,280,575.57 = 379,848.96/x
  3. Step 3: Cross multiply
    853,487.54x = 1,280,575.57 × 379,848.96
  4. Step 4: Simplify right side
    853,487.54x = 486,425,298,465.91
  5. Step 5: Solve for x
    x = 486,425,298,465.91/853,487.54
  6. Step 6: Final answer
    x = 569,926.65

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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.