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Finding the Fourth Proportional to 768,674.78, 1,060,772.99 and 424,504.43

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Solution

The fourth proportional to 768,674.78, 1,060,772.99 and 424,504.43 is: 585,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,674.78 : 1,060,772.99 = 424,504.43 : x
  2. Step 2: Convert to fraction form
    768,674.78/1,060,772.99 = 424,504.43/x
  3. Step 3: Cross multiply
    768,674.78x = 1,060,772.99 × 424,504.43
  4. Step 4: Simplify right side
    768,674.78x = 450,302,826,052.96
  5. Step 5: Solve for x
    x = 450,302,826,052.96/768,674.78
  6. Step 6: Final answer
    x = 585,817.10

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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.