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Finding the Fourth Proportional to 768,674.62, 1,060,772.77 and 424,504.27

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Solution

The fourth proportional to 768,674.62, 1,060,772.77 and 424,504.27 is: 585,816.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,674.62 : 1,060,772.77 = 424,504.27 : x
  2. Step 2: Convert to fraction form
    768,674.62/1,060,772.77 = 424,504.27/x
  3. Step 3: Cross multiply
    768,674.62x = 1,060,772.77 × 424,504.27
  4. Step 4: Simplify right side
    768,674.62x = 450,302,570,364.73
  5. Step 5: Solve for x
    x = 450,302,570,364.73/768,674.62
  6. Step 6: Final answer
    x = 585,816.88

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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.