Home / 941,220-1,298,891.97-511,500.15

Finding the Fourth Proportional to 941,220, 1,298,891.97 and 511,500.15

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Solution

The fourth proportional to 941,220, 1,298,891.97 and 511,500.15 is: 705,874.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,220 : 1,298,891.97 = 511,500.15 : x
  2. Step 2: Convert to fraction form
    941,220/1,298,891.97 = 511,500.15/x
  3. Step 3: Cross multiply
    941,220x = 1,298,891.97 × 511,500.15
  4. Step 4: Simplify right side
    941,220x = 664,383,437,488.80
  5. Step 5: Solve for x
    x = 664,383,437,488.80/941,220
  6. Step 6: Final answer
    x = 705,874.76

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1.5x scale

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.