Home / 648,259.91-972,392.17-198,980.81

Finding the Fourth Proportional to 648,259.91, 972,392.17 and 198,980.81

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Solution

The fourth proportional to 648,259.91, 972,392.17 and 198,980.81 is: 298,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,259.91 : 972,392.17 = 198,980.81 : x
  2. Step 2: Convert to fraction form
    648,259.91/972,392.17 = 198,980.81/x
  3. Step 3: Cross multiply
    648,259.91x = 972,392.17 × 198,980.81
  4. Step 4: Simplify right side
    648,259.91x = 193,487,383,557.79
  5. Step 5: Solve for x
    x = 193,487,383,557.79/648,259.91
  6. Step 6: Final answer
    x = 298,471.93

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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.