Home / 1,391,664.56-1,920,497.38-847,800.19

Finding the Fourth Proportional to 1,391,664.56, 1,920,497.38 and 847,800.19

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Solution

The fourth proportional to 1,391,664.56, 1,920,497.38 and 847,800.19 is: 1,169,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,664.56 : 1,920,497.38 = 847,800.19 : x
  2. Step 2: Convert to fraction form
    1,391,664.56/1,920,497.38 = 847,800.19/x
  3. Step 3: Cross multiply
    1,391,664.56x = 1,920,497.38 × 847,800.19
  4. Step 4: Simplify right side
    1,391,664.56x = 1,628,198,036,737.76
  5. Step 5: Solve for x
    x = 1,628,198,036,737.76/1,391,664.56
  6. Step 6: Final answer
    x = 1,169,964.43

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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.