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Finding the Fourth Proportional to 680,026.56, 937,909.44 and 438,348.48

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Solution

The fourth proportional to 680,026.56, 937,909.44 and 438,348.48 is: 604,581.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,026.56 : 937,909.44 = 438,348.48 : x
  2. Step 2: Convert to fraction form
    680,026.56/937,909.44 = 438,348.48/x
  3. Step 3: Cross multiply
    680,026.56x = 937,909.44 × 438,348.48
  4. Step 4: Simplify right side
    680,026.56x = 411,131,177,401.65
  5. Step 5: Solve for x
    x = 411,131,177,401.65/680,026.56
  6. Step 6: Final answer
    x = 604,581.06

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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.