Home / 648,066.42-972,279.99-198,801.81

Finding the Fourth Proportional to 648,066.42, 972,279.99 and 198,801.81

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Solution

The fourth proportional to 648,066.42, 972,279.99 and 198,801.81 is: 298,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,066.42 : 972,279.99 = 198,801.81 : x
  2. Step 2: Convert to fraction form
    648,066.42/972,279.99 = 198,801.81/x
  3. Step 3: Cross multiply
    648,066.42x = 972,279.99 × 198,801.81
  4. Step 4: Simplify right side
    648,066.42x = 193,291,021,838.78
  5. Step 5: Solve for x
    x = 193,291,021,838.78/648,066.42
  6. Step 6: Final answer
    x = 298,258.04

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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.