Home / 723,776.39-1,085,672.38-218,341.75

Finding the Fourth Proportional to 723,776.39, 1,085,672.38 and 218,341.75

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Solution

The fourth proportional to 723,776.39, 1,085,672.38 and 218,341.75 is: 327,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,776.39 : 1,085,672.38 = 218,341.75 : x
  2. Step 2: Convert to fraction form
    723,776.39/1,085,672.38 = 218,341.75/x
  3. Step 3: Cross multiply
    723,776.39x = 1,085,672.38 × 218,341.75
  4. Step 4: Simplify right side
    723,776.39x = 237,047,607,321.07
  5. Step 5: Solve for x
    x = 237,047,607,321.07/723,776.39
  6. Step 6: Final answer
    x = 327,514.97

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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.