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Finding the Fourth Proportional to 652,632.66, 978,832.22 and 415,270.26

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Solution

The fourth proportional to 652,632.66, 978,832.22 and 415,270.26 is: 622,831.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,632.66 : 978,832.22 = 415,270.26 : x
  2. Step 2: Convert to fraction form
    652,632.66/978,832.22 = 415,270.26/x
  3. Step 3: Cross multiply
    652,632.66x = 978,832.22 × 415,270.26
  4. Step 4: Simplify right side
    652,632.66x = 406,479,908,419.43
  5. Step 5: Solve for x
    x = 406,479,908,419.43/652,632.66
  6. Step 6: Final answer
    x = 622,831.09

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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.