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Finding the Fourth Proportional to 478,933.04, 660,580.20 and 325,698.86

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Solution

The fourth proportional to 478,933.04, 660,580.20 and 325,698.86 is: 449,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,933.04 : 660,580.20 = 325,698.86 : x
  2. Step 2: Convert to fraction form
    478,933.04/660,580.20 = 325,698.86/x
  3. Step 3: Cross multiply
    478,933.04x = 660,580.20 × 325,698.86
  4. Step 4: Simplify right side
    478,933.04x = 215,150,218,078.57
  5. Step 5: Solve for x
    x = 215,150,218,078.57/478,933.04
  6. Step 6: Final answer
    x = 449,228.18

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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.