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Finding the Fourth Proportional to 640,552.88, 960,879.24 and 374,341.04

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Solution

The fourth proportional to 640,552.88, 960,879.24 and 374,341.04 is: 561,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,552.88 : 960,879.24 = 374,341.04 : x
  2. Step 2: Convert to fraction form
    640,552.88/960,879.24 = 374,341.04/x
  3. Step 3: Cross multiply
    640,552.88x = 960,879.24 × 374,341.04
  4. Step 4: Simplify right side
    640,552.88x = 359,696,534,016.01
  5. Step 5: Solve for x
    x = 359,696,534,016.01/640,552.88
  6. Step 6: Final answer
    x = 561,540.73

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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.