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Finding the Fourth Proportional to 671,744.16, 927,002.88 and 369,936

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Solution

The fourth proportional to 671,744.16, 927,002.88 and 369,936 is: 510,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,744.16 : 927,002.88 = 369,936 : x
  2. Step 2: Convert to fraction form
    671,744.16/927,002.88 = 369,936/x
  3. Step 3: Cross multiply
    671,744.16x = 927,002.88 × 369,936
  4. Step 4: Simplify right side
    671,744.16x = 342,931,737,415.68
  5. Step 5: Solve for x
    x = 342,931,737,415.68/671,744.16
  6. Step 6: Final answer
    x = 510,509.44

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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.