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Finding the Fourth Proportional to 561,668.60, 842,502.90 and 349,092.20

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Solution

The fourth proportional to 561,668.60, 842,502.90 and 349,092.20 is: 523,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,668.60 : 842,502.90 = 349,092.20 : x
  2. Step 2: Convert to fraction form
    561,668.60/842,502.90 = 349,092.20/x
  3. Step 3: Cross multiply
    561,668.60x = 842,502.90 × 349,092.20
  4. Step 4: Simplify right side
    561,668.60x = 294,111,190,867.38
  5. Step 5: Solve for x
    x = 294,111,190,867.38/561,668.60
  6. Step 6: Final answer
    x = 523,638.30

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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.