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Finding the Fourth Proportional to 431,168.80, 602,849 and 431,168.80

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Solution

The fourth proportional to 431,168.80, 602,849 and 431,168.80 is: 602,849

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,168.80 : 602,849 = 431,168.80 : x
  2. Step 2: Convert to fraction form
    431,168.80/602,849 = 431,168.80/x
  3. Step 3: Cross multiply
    431,168.80x = 602,849 × 431,168.80
  4. Step 4: Simplify right side
    431,168.80x = 259,929,679,911.20
  5. Step 5: Solve for x
    x = 259,929,679,911.20/431,168.80
  6. Step 6: Final answer
    x = 602,849

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.