Home / 1,586,815.48-2,189,798.43-861,657.31

Finding the Fourth Proportional to 1,586,815.48, 2,189,798.43 and 861,657.31

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Solution

The fourth proportional to 1,586,815.48, 2,189,798.43 and 861,657.31 is: 1,189,083.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,815.48 : 2,189,798.43 = 861,657.31 : x
  2. Step 2: Convert to fraction form
    1,586,815.48/2,189,798.43 = 861,657.31/x
  3. Step 3: Cross multiply
    1,586,815.48x = 2,189,798.43 × 861,657.31
  4. Step 4: Simplify right side
    1,586,815.48x = 1,886,855,813,687.03
  5. Step 5: Solve for x
    x = 1,886,855,813,687.03/1,586,815.48
  6. Step 6: Final answer
    x = 1,189,083.32

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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.