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Finding the Fourth Proportional to 640,498.80, 883,872.94 and 350,097.33

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Solution

The fourth proportional to 640,498.80, 883,872.94 and 350,097.33 is: 483,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,498.80 : 883,872.94 = 350,097.33 : x
  2. Step 2: Convert to fraction form
    640,498.80/883,872.94 = 350,097.33/x
  3. Step 3: Cross multiply
    640,498.80x = 883,872.94 × 350,097.33
  4. Step 4: Simplify right side
    640,498.80x = 309,441,552,163.48
  5. Step 5: Solve for x
    x = 309,441,552,163.48/640,498.80
  6. Step 6: Final answer
    x = 483,125.89

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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.