Home / 644,822.42-889,784.28-372,849.15

Finding the Fourth Proportional to 644,822.42, 889,784.28 and 372,849.15

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Solution

The fourth proportional to 644,822.42, 889,784.28 and 372,849.15 is: 514,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,822.42 : 889,784.28 = 372,849.15 : x
  2. Step 2: Convert to fraction form
    644,822.42/889,784.28 = 372,849.15/x
  3. Step 3: Cross multiply
    644,822.42x = 889,784.28 × 372,849.15
  4. Step 4: Simplify right side
    644,822.42x = 331,755,315,818.05
  5. Step 5: Solve for x
    x = 331,755,315,818.05/644,822.42
  6. Step 6: Final answer
    x = 514,490.98

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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.