Home / 644,822.29-889,784.11-372,849.03

Finding the Fourth Proportional to 644,822.29, 889,784.11 and 372,849.03

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Solution

The fourth proportional to 644,822.29, 889,784.11 and 372,849.03 is: 514,490.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,822.29 : 889,784.11 = 372,849.03 : x
  2. Step 2: Convert to fraction form
    644,822.29/889,784.11 = 372,849.03/x
  3. Step 3: Cross multiply
    644,822.29x = 889,784.11 × 372,849.03
  4. Step 4: Simplify right side
    644,822.29x = 331,755,142,322.91
  5. Step 5: Solve for x
    x = 331,755,142,322.91/644,822.29
  6. Step 6: Final answer
    x = 514,490.81

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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.