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Finding the Fourth Proportional to 436,280.68, 601,821.43 and 261,805.74

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Solution

The fourth proportional to 436,280.68, 601,821.43 and 261,805.74 is: 361,144.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,280.68 : 601,821.43 = 261,805.74 : x
  2. Step 2: Convert to fraction form
    436,280.68/601,821.43 = 261,805.74/x
  3. Step 3: Cross multiply
    436,280.68x = 601,821.43 × 261,805.74
  4. Step 4: Simplify right side
    436,280.68x = 157,560,304,829.01
  5. Step 5: Solve for x
    x = 157,560,304,829.01/436,280.68
  6. Step 6: Final answer
    x = 361,144.36

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1.5x scale

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.