Home / 723,986.70-1,085,974.65-218,546.70

Finding the Fourth Proportional to 723,986.70, 1,085,974.65 and 218,546.70

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Solution

The fourth proportional to 723,986.70, 1,085,974.65 and 218,546.70 is: 327,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,986.70 : 1,085,974.65 = 218,546.70 : x
  2. Step 2: Convert to fraction form
    723,986.70/1,085,974.65 = 218,546.70/x
  3. Step 3: Cross multiply
    723,986.70x = 1,085,974.65 × 218,546.70
  4. Step 4: Simplify right side
    723,986.70x = 237,336,176,041.16
  5. Step 5: Solve for x
    x = 237,336,176,041.16/723,986.70
  6. Step 6: Final answer
    x = 327,818.42

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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.