Home / 644,692.12-889,623.03-372,777.63

Finding the Fourth Proportional to 644,692.12, 889,623.03 and 372,777.63

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Solution

The fourth proportional to 644,692.12, 889,623.03 and 372,777.63 is: 514,403.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,692.12 : 889,623.03 = 372,777.63 : x
  2. Step 2: Convert to fraction form
    644,692.12/889,623.03 = 372,777.63/x
  3. Step 3: Cross multiply
    644,692.12x = 889,623.03 × 372,777.63
  4. Step 4: Simplify right side
    644,692.12x = 331,631,564,716.82
  5. Step 5: Solve for x
    x = 331,631,564,716.82/644,692.12
  6. Step 6: Final answer
    x = 514,403.01

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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.