Home / 721,811.64-1,082,866.86-216,352.20

Finding the Fourth Proportional to 721,811.64, 1,082,866.86 and 216,352.20

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Solution

The fourth proportional to 721,811.64, 1,082,866.86 and 216,352.20 is: 324,573.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,811.64 : 1,082,866.86 = 216,352.20 : x
  2. Step 2: Convert to fraction form
    721,811.64/1,082,866.86 = 216,352.20/x
  3. Step 3: Cross multiply
    721,811.64x = 1,082,866.86 × 216,352.20
  4. Step 4: Simplify right side
    721,811.64x = 234,280,627,468.09
  5. Step 5: Solve for x
    x = 234,280,627,468.09/721,811.64
  6. Step 6: Final answer
    x = 324,573.08

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Double scale
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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.