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Finding the Fourth Proportional to 696,455.04, 961,326.72 and 394,849.92

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Solution

The fourth proportional to 696,455.04, 961,326.72 and 394,849.92 is: 545,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,455.04 : 961,326.72 = 394,849.92 : x
  2. Step 2: Convert to fraction form
    696,455.04/961,326.72 = 394,849.92/x
  3. Step 3: Cross multiply
    696,455.04x = 961,326.72 × 394,849.92
  4. Step 4: Simplify right side
    696,455.04x = 379,579,778,485.86
  5. Step 5: Solve for x
    x = 379,579,778,485.86/696,455.04
  6. Step 6: Final answer
    x = 545,016.92

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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.