Home / 470,982-649,972.26-269,816.88

Finding the Fourth Proportional to 470,982, 649,972.26 and 269,816.88

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Solution

The fourth proportional to 470,982, 649,972.26 and 269,816.88 is: 372,357.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,982 : 649,972.26 = 269,816.88 : x
  2. Step 2: Convert to fraction form
    470,982/649,972.26 = 269,816.88/x
  3. Step 3: Cross multiply
    470,982x = 649,972.26 × 269,816.88
  4. Step 4: Simplify right side
    470,982x = 175,373,487,279.75
  5. Step 5: Solve for x
    x = 175,373,487,279.75/470,982
  6. Step 6: Final answer
    x = 372,357.09

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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.