Home / 1,185,776.87-1,636,370.19-641,912.52

Finding the Fourth Proportional to 1,185,776.87, 1,636,370.19 and 641,912.52

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Solution

The fourth proportional to 1,185,776.87, 1,636,370.19 and 641,912.52 is: 885,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,776.87 : 1,636,370.19 = 641,912.52 : x
  2. Step 2: Convert to fraction form
    1,185,776.87/1,636,370.19 = 641,912.52/x
  3. Step 3: Cross multiply
    1,185,776.87x = 1,636,370.19 × 641,912.52
  4. Step 4: Simplify right side
    1,185,776.87x = 1,050,406,512,315.78
  5. Step 5: Solve for x
    x = 1,050,406,512,315.78/1,185,776.87
  6. Step 6: Final answer
    x = 885,838.25

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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.