Home / 847,455.52-1,271,183.28-216,346.72

Finding the Fourth Proportional to 847,455.52, 1,271,183.28 and 216,346.72

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Solution

The fourth proportional to 847,455.52, 1,271,183.28 and 216,346.72 is: 324,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,455.52 : 1,271,183.28 = 216,346.72 : x
  2. Step 2: Convert to fraction form
    847,455.52/1,271,183.28 = 216,346.72/x
  3. Step 3: Cross multiply
    847,455.52x = 1,271,183.28 × 216,346.72
  4. Step 4: Simplify right side
    847,455.52x = 275,016,333,146.84
  5. Step 5: Solve for x
    x = 275,016,333,146.84/847,455.52
  6. Step 6: Final answer
    x = 324,520.08

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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.