Home / 1,021,472.89-1,532,205.18-311,498.86

Finding the Fourth Proportional to 1,021,472.89, 1,532,205.18 and 311,498.86

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Solution

The fourth proportional to 1,021,472.89, 1,532,205.18 and 311,498.86 is: 467,247.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,472.89 : 1,532,205.18 = 311,498.86 : x
  2. Step 2: Convert to fraction form
    1,021,472.89/1,532,205.18 = 311,498.86/x
  3. Step 3: Cross multiply
    1,021,472.89x = 1,532,205.18 × 311,498.86
  4. Step 4: Simplify right side
    1,021,472.89x = 477,280,166,856.10
  5. Step 5: Solve for x
    x = 477,280,166,856.10/1,021,472.89
  6. Step 6: Final answer
    x = 467,247.02

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Double scale
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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.