Home / 663,115.58-994,867.47-213,827.42

Finding the Fourth Proportional to 663,115.58, 994,867.47 and 213,827.42

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Solution

The fourth proportional to 663,115.58, 994,867.47 and 213,827.42 is: 320,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,115.58 : 994,867.47 = 213,827.42 : x
  2. Step 2: Convert to fraction form
    663,115.58/994,867.47 = 213,827.42/x
  3. Step 3: Cross multiply
    663,115.58x = 994,867.47 × 213,827.42
  4. Step 4: Simplify right side
    663,115.58x = 212,729,939,377.69
  5. Step 5: Solve for x
    x = 212,729,939,377.69/663,115.58
  6. Step 6: Final answer
    x = 320,803.71

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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.