Home / 847,415.72-1,271,123.08-216,329.28

Finding the Fourth Proportional to 847,415.72, 1,271,123.08 and 216,329.28

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Solution

The fourth proportional to 847,415.72, 1,271,123.08 and 216,329.28 is: 324,493.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,415.72 : 1,271,123.08 = 216,329.28 : x
  2. Step 2: Convert to fraction form
    847,415.72/1,271,123.08 = 216,329.28/x
  3. Step 3: Cross multiply
    847,415.72x = 1,271,123.08 × 216,329.28
  4. Step 4: Simplify right side
    847,415.72x = 274,981,140,687.78
  5. Step 5: Solve for x
    x = 274,981,140,687.78/847,415.72
  6. Step 6: Final answer
    x = 324,493.79

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Half scale
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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.