Home / 648,356.90-972,612.96-199,018.88

Finding the Fourth Proportional to 648,356.90, 972,612.96 and 199,018.88

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Solution

The fourth proportional to 648,356.90, 972,612.96 and 199,018.88 is: 298,552.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,356.90 : 972,612.96 = 199,018.88 : x
  2. Step 2: Convert to fraction form
    648,356.90/972,612.96 = 199,018.88/x
  3. Step 3: Cross multiply
    648,356.90x = 972,612.96 × 199,018.88
  4. Step 4: Simplify right side
    648,356.90x = 193,568,341,972.69
  5. Step 5: Solve for x
    x = 193,568,341,972.69/648,356.90
  6. Step 6: Final answer
    x = 298,552.14

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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.