Home / 817,770.38-1,128,497.94-455,184.90

Finding the Fourth Proportional to 817,770.38, 1,128,497.94 and 455,184.90

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Solution

The fourth proportional to 817,770.38, 1,128,497.94 and 455,184.90 is: 628,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,770.38 : 1,128,497.94 = 455,184.90 : x
  2. Step 2: Convert to fraction form
    817,770.38/1,128,497.94 = 455,184.90/x
  3. Step 3: Cross multiply
    817,770.38x = 1,128,497.94 × 455,184.90
  4. Step 4: Simplify right side
    817,770.38x = 513,675,221,969.11
  5. Step 5: Solve for x
    x = 513,675,221,969.11/817,770.38
  6. Step 6: Final answer
    x = 628,141.15

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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.