Home / 699,901.54-966,022.14-428,195.95

Finding the Fourth Proportional to 699,901.54, 966,022.14 and 428,195.95

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Solution

The fourth proportional to 699,901.54, 966,022.14 and 428,195.95 is: 591,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,901.54 : 966,022.14 = 428,195.95 : x
  2. Step 2: Convert to fraction form
    699,901.54/966,022.14 = 428,195.95/x
  3. Step 3: Cross multiply
    699,901.54x = 966,022.14 × 428,195.95
  4. Step 4: Simplify right side
    699,901.54x = 413,646,767,958.33
  5. Step 5: Solve for x
    x = 413,646,767,958.33/699,901.54
  6. Step 6: Final answer
    x = 591,007.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.