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Finding the Fourth Proportional to 500,719.02, 750,175.49 and 308,258.49

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Solution

The fourth proportional to 500,719.02, 750,175.49 and 308,258.49 is: 461,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,719.02 : 750,175.49 = 308,258.49 : x
  2. Step 2: Convert to fraction form
    500,719.02/750,175.49 = 308,258.49/x
  3. Step 3: Cross multiply
    500,719.02x = 750,175.49 × 308,258.49
  4. Step 4: Simplify right side
    500,719.02x = 231,247,967,344.63
  5. Step 5: Solve for x
    x = 231,247,967,344.63/500,719.02
  6. Step 6: Final answer
    x = 461,831.80

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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.