Home / 1,586,641.96-2,189,603.96-861,520.24

Finding the Fourth Proportional to 1,586,641.96, 2,189,603.96 and 861,520.24

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Solution

The fourth proportional to 1,586,641.96, 2,189,603.96 and 861,520.24 is: 1,188,918.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,641.96 : 2,189,603.96 = 861,520.24 : x
  2. Step 2: Convert to fraction form
    1,586,641.96/2,189,603.96 = 861,520.24/x
  3. Step 3: Cross multiply
    1,586,641.96x = 2,189,603.96 × 861,520.24
  4. Step 4: Simplify right side
    1,586,641.96x = 1,886,388,129,124.15
  5. Step 5: Solve for x
    x = 1,886,388,129,124.15/1,586,641.96
  6. Step 6: Final answer
    x = 1,188,918.59

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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.