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Finding the Fourth Proportional to 494,637.60, 741,956.40 and 426,986.40

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Solution

The fourth proportional to 494,637.60, 741,956.40 and 426,986.40 is: 640,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,637.60 : 741,956.40 = 426,986.40 : x
  2. Step 2: Convert to fraction form
    494,637.60/741,956.40 = 426,986.40/x
  3. Step 3: Cross multiply
    494,637.60x = 741,956.40 × 426,986.40
  4. Step 4: Simplify right side
    494,637.60x = 316,805,292,192.96
  5. Step 5: Solve for x
    x = 316,805,292,192.96/494,637.60
  6. Step 6: Final answer
    x = 640,479.60

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Similar ratio
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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.