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Finding the Fourth Proportional to 414,632, 621,923.40 and 243,949.64

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Solution

The fourth proportional to 414,632, 621,923.40 and 243,949.64 is: 365,909.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,632 : 621,923.40 = 243,949.64 : x
  2. Step 2: Convert to fraction form
    414,632/621,923.40 = 243,949.64/x
  3. Step 3: Cross multiply
    414,632x = 621,923.40 × 243,949.64
  4. Step 4: Simplify right side
    414,632x = 151,717,989,537.58
  5. Step 5: Solve for x
    x = 151,717,989,537.58/414,632
  6. Step 6: Final answer
    x = 365,909.99

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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.