Home / 644,332.92-889,127.40-372,418.43

Finding the Fourth Proportional to 644,332.92, 889,127.40 and 372,418.43

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Solution

The fourth proportional to 644,332.92, 889,127.40 and 372,418.43 is: 513,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,332.92 : 889,127.40 = 372,418.43 : x
  2. Step 2: Convert to fraction form
    644,332.92/889,127.40 = 372,418.43/x
  3. Step 3: Cross multiply
    644,332.92x = 889,127.40 × 372,418.43
  4. Step 4: Simplify right side
    644,332.92x = 331,127,425,932.35
  5. Step 5: Solve for x
    x = 331,127,425,932.35/644,332.92
  6. Step 6: Final answer
    x = 513,907.35

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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.