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Finding the Fourth Proportional to 324,623.34, 486,889.56 and 111,387.78

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Solution

The fourth proportional to 324,623.34, 486,889.56 and 111,387.78 is: 167,066.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,623.34 : 486,889.56 = 111,387.78 : x
  2. Step 2: Convert to fraction form
    324,623.34/486,889.56 = 111,387.78/x
  3. Step 3: Cross multiply
    324,623.34x = 486,889.56 × 111,387.78
  4. Step 4: Simplify right side
    324,623.34x = 54,233,547,193.58
  5. Step 5: Solve for x
    x = 54,233,547,193.58/324,623.34
  6. Step 6: Final answer
    x = 167,066.07

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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.