Home / 853,680.48-1,280,520.76-292,719.84

Finding the Fourth Proportional to 853,680.48, 1,280,520.76 and 292,719.84

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Solution

The fourth proportional to 853,680.48, 1,280,520.76 and 292,719.84 is: 439,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,680.48 : 1,280,520.76 = 292,719.84 : x
  2. Step 2: Convert to fraction form
    853,680.48/1,280,520.76 = 292,719.84/x
  3. Step 3: Cross multiply
    853,680.48x = 1,280,520.76 × 292,719.84
  4. Step 4: Simplify right side
    853,680.48x = 374,833,831,983.88
  5. Step 5: Solve for x
    x = 374,833,831,983.88/853,680.48
  6. Step 6: Final answer
    x = 439,079.77

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Similar ratio
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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.