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Finding the Fourth Proportional to 659,361.16, 909,857.10 and 372,880.36

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Solution

The fourth proportional to 659,361.16, 909,857.10 and 372,880.36 is: 514,540.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,361.16 : 909,857.10 = 372,880.36 : x
  2. Step 2: Convert to fraction form
    659,361.16/909,857.10 = 372,880.36/x
  3. Step 3: Cross multiply
    659,361.16x = 909,857.10 × 372,880.36
  4. Step 4: Simplify right side
    659,361.16x = 339,267,842,996.56
  5. Step 5: Solve for x
    x = 339,267,842,996.56/659,361.16
  6. Step 6: Final answer
    x = 514,540.23

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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.