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Finding the Fourth Proportional to 474,390.34, 654,872.42 and 302,538.92

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Solution

The fourth proportional to 474,390.34, 654,872.42 and 302,538.92 is: 417,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,390.34 : 654,872.42 = 302,538.92 : x
  2. Step 2: Convert to fraction form
    474,390.34/654,872.42 = 302,538.92/x
  3. Step 3: Cross multiply
    474,390.34x = 654,872.42 × 302,538.92
  4. Step 4: Simplify right side
    474,390.34x = 198,124,394,684.59
  5. Step 5: Solve for x
    x = 198,124,394,684.59/474,390.34
  6. Step 6: Final answer
    x = 417,640.03

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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.