Home / 1,185,863.14-1,636,489.11-641,998.72

Finding the Fourth Proportional to 1,185,863.14, 1,636,489.11 and 641,998.72

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Solution

The fourth proportional to 1,185,863.14, 1,636,489.11 and 641,998.72 is: 885,957.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,863.14 : 1,636,489.11 = 641,998.72 : x
  2. Step 2: Convert to fraction form
    1,185,863.14/1,636,489.11 = 641,998.72/x
  3. Step 3: Cross multiply
    1,185,863.14x = 1,636,489.11 × 641,998.72
  4. Step 4: Simplify right side
    1,185,863.14x = 1,050,623,913,913.94
  5. Step 5: Solve for x
    x = 1,050,623,913,913.94/1,185,863.14
  6. Step 6: Final answer
    x = 885,957.14

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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.