Home / 427,019.72-589,227.01-243,263.12

Finding the Fourth Proportional to 427,019.72, 589,227.01 and 243,263.12

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Solution

The fourth proportional to 427,019.72, 589,227.01 and 243,263.12 is: 335,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,019.72 : 589,227.01 = 243,263.12 : x
  2. Step 2: Convert to fraction form
    427,019.72/589,227.01 = 243,263.12/x
  3. Step 3: Cross multiply
    427,019.72x = 589,227.01 × 243,263.12
  4. Step 4: Simplify right side
    427,019.72x = 143,337,197,286.58
  5. Step 5: Solve for x
    x = 143,337,197,286.58/427,019.72
  6. Step 6: Final answer
    x = 335,668.80

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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.