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Finding the Fourth Proportional to 605,720.14, 907,575.80 and 368,344.78

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Solution

The fourth proportional to 605,720.14, 907,575.80 and 368,344.78 is: 551,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,720.14 : 907,575.80 = 368,344.78 : x
  2. Step 2: Convert to fraction form
    605,720.14/907,575.80 = 368,344.78/x
  3. Step 3: Cross multiply
    605,720.14x = 907,575.80 × 368,344.78
  4. Step 4: Simplify right side
    605,720.14x = 334,300,808,384.32
  5. Step 5: Solve for x
    x = 334,300,808,384.32/605,720.14
  6. Step 6: Final answer
    x = 551,906.38

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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.