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Finding the Fourth Proportional to 605,728.14, 907,587.78 and 368,352.78

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Solution

The fourth proportional to 605,728.14, 907,587.78 and 368,352.78 is: 551,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,728.14 : 907,587.78 = 368,352.78 : x
  2. Step 2: Convert to fraction form
    605,728.14/907,587.78 = 368,352.78/x
  3. Step 3: Cross multiply
    605,728.14x = 907,587.78 × 368,352.78
  4. Step 4: Simplify right side
    605,728.14x = 334,312,481,857.03
  5. Step 5: Solve for x
    x = 334,312,481,857.03/605,728.14
  6. Step 6: Final answer
    x = 551,918.36

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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.