Home / 1,586,624.12-2,189,579.33-861,502.40

Finding the Fourth Proportional to 1,586,624.12, 2,189,579.33 and 861,502.40

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Solution

The fourth proportional to 1,586,624.12, 2,189,579.33 and 861,502.40 is: 1,188,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,624.12 : 2,189,579.33 = 861,502.40 : x
  2. Step 2: Convert to fraction form
    1,586,624.12/2,189,579.33 = 861,502.40/x
  3. Step 3: Cross multiply
    1,586,624.12x = 2,189,579.33 × 861,502.40
  4. Step 4: Simplify right side
    1,586,624.12x = 1,886,327,847,785.39
  5. Step 5: Solve for x
    x = 1,886,327,847,785.39/1,586,624.12
  6. Step 6: Final answer
    x = 1,188,893.97

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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.