Home / 469,548.18-648,078.84-288,355.32

Finding the Fourth Proportional to 469,548.18, 648,078.84 and 288,355.32

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Solution

The fourth proportional to 469,548.18, 648,078.84 and 288,355.32 is: 397,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,548.18 : 648,078.84 = 288,355.32 : x
  2. Step 2: Convert to fraction form
    469,548.18/648,078.84 = 288,355.32/x
  3. Step 3: Cross multiply
    469,548.18x = 648,078.84 × 288,355.32
  4. Step 4: Simplify right side
    469,548.18x = 186,876,981,293.43
  5. Step 5: Solve for x
    x = 186,876,981,293.43/469,548.18
  6. Step 6: Final answer
    x = 397,993.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.