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Finding the Fourth Proportional to 696,959.52, 961,449.93 and 455,383.50

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Solution

The fourth proportional to 696,959.52, 961,449.93 and 455,383.50 is: 628,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,959.52 : 961,449.93 = 455,383.50 : x
  2. Step 2: Convert to fraction form
    696,959.52/961,449.93 = 455,383.50/x
  3. Step 3: Cross multiply
    696,959.52x = 961,449.93 × 455,383.50
  4. Step 4: Simplify right side
    696,959.52x = 437,828,434,198.16
  5. Step 5: Solve for x
    x = 437,828,434,198.16/696,959.52
  6. Step 6: Final answer
    x = 628,197.80

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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.