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Finding the Fourth Proportional to 696,960.02, 961,450.62 and 455,384

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Solution

The fourth proportional to 696,960.02, 961,450.62 and 455,384 is: 628,198.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,960.02 : 961,450.62 = 455,384 : x
  2. Step 2: Convert to fraction form
    696,960.02/961,450.62 = 455,384/x
  3. Step 3: Cross multiply
    696,960.02x = 961,450.62 × 455,384
  4. Step 4: Simplify right side
    696,960.02x = 437,829,229,138.08
  5. Step 5: Solve for x
    x = 437,829,229,138.08/696,960.02
  6. Step 6: Final answer
    x = 628,198.49

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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.