Home / 418,942.19-577,038.94-321,960.49

Finding the Fourth Proportional to 418,942.19, 577,038.94 and 321,960.49

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Solution

The fourth proportional to 418,942.19, 577,038.94 and 321,960.49 is: 443,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,942.19 : 577,038.94 = 321,960.49 : x
  2. Step 2: Convert to fraction form
    418,942.19/577,038.94 = 321,960.49/x
  3. Step 3: Cross multiply
    418,942.19x = 577,038.94 × 321,960.49
  4. Step 4: Simplify right side
    418,942.19x = 185,783,737,623.98
  5. Step 5: Solve for x
    x = 185,783,737,623.98/418,942.19
  6. Step 6: Final answer
    x = 443,459.12

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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.