Home / 663,230.90-995,040.08-213,941.79

Finding the Fourth Proportional to 663,230.90, 995,040.08 and 213,941.79

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Solution

The fourth proportional to 663,230.90, 995,040.08 and 213,941.79 is: 320,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,230.90 : 995,040.08 = 213,941.79 : x
  2. Step 2: Convert to fraction form
    663,230.90/995,040.08 = 213,941.79/x
  3. Step 3: Cross multiply
    663,230.90x = 995,040.08 × 213,941.79
  4. Step 4: Simplify right side
    663,230.90x = 212,880,655,836.94
  5. Step 5: Solve for x
    x = 212,880,655,836.94/663,230.90
  6. Step 6: Final answer
    x = 320,975.18

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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.