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Finding the Fourth Proportional to 644,825.16, 889,788.08 and 372,851.90

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Solution

The fourth proportional to 644,825.16, 889,788.08 and 372,851.90 is: 514,494.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,825.16 : 889,788.08 = 372,851.90 : x
  2. Step 2: Convert to fraction form
    644,825.16/889,788.08 = 372,851.90/x
  3. Step 3: Cross multiply
    644,825.16x = 889,788.08 × 372,851.90
  4. Step 4: Simplify right side
    644,825.16x = 331,759,176,225.35
  5. Step 5: Solve for x
    x = 331,759,176,225.35/644,825.16
  6. Step 6: Final answer
    x = 514,494.78

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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.