Home / 644,825.04-889,787.90-372,851.78

Finding the Fourth Proportional to 644,825.04, 889,787.90 and 372,851.78

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Solution

The fourth proportional to 644,825.04, 889,787.90 and 372,851.78 is: 514,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,825.04 : 889,787.90 = 372,851.78 : x
  2. Step 2: Convert to fraction form
    644,825.04/889,787.90 = 372,851.78/x
  3. Step 3: Cross multiply
    644,825.04x = 889,787.90 × 372,851.78
  4. Step 4: Simplify right side
    644,825.04x = 331,759,002,157.36
  5. Step 5: Solve for x
    x = 331,759,002,157.36/644,825.04
  6. Step 6: Final answer
    x = 514,494.60

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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.