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Finding the Fourth Proportional to 644,252.61, 889,087.26 and 368,655.29

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Solution

The fourth proportional to 644,252.61, 889,087.26 and 368,655.29 is: 508,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,252.61 : 889,087.26 = 368,655.29 : x
  2. Step 2: Convert to fraction form
    644,252.61/889,087.26 = 368,655.29/x
  3. Step 3: Cross multiply
    644,252.61x = 889,087.26 × 368,655.29
  4. Step 4: Simplify right side
    644,252.61x = 327,766,721,670.61
  5. Step 5: Solve for x
    x = 327,766,721,670.61/644,252.61
  6. Step 6: Final answer
    x = 508,754.98

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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.