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Finding the Fourth Proportional to 645,270.80, 967,906.20 and 365,334.80

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Solution

The fourth proportional to 645,270.80, 967,906.20 and 365,334.80 is: 548,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,270.80 : 967,906.20 = 365,334.80 : x
  2. Step 2: Convert to fraction form
    645,270.80/967,906.20 = 365,334.80/x
  3. Step 3: Cross multiply
    645,270.80x = 967,906.20 × 365,334.80
  4. Step 4: Simplify right side
    645,270.80x = 353,609,817,995.76
  5. Step 5: Solve for x
    x = 353,609,817,995.76/645,270.80
  6. Step 6: Final answer
    x = 548,002.20

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1.5x scale

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.