Home / 648,144.60-972,362.70-198,886.20

Finding the Fourth Proportional to 648,144.60, 972,362.70 and 198,886.20

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Solution

The fourth proportional to 648,144.60, 972,362.70 and 198,886.20 is: 298,374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,144.60 : 972,362.70 = 198,886.20 : x
  2. Step 2: Convert to fraction form
    648,144.60/972,362.70 = 198,886.20/x
  3. Step 3: Cross multiply
    648,144.60x = 972,362.70 × 198,886.20
  4. Step 4: Simplify right side
    648,144.60x = 193,389,522,424.74
  5. Step 5: Solve for x
    x = 193,389,522,424.74/648,144.60
  6. Step 6: Final answer
    x = 298,374.04

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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.