Home / 1,305,318.70-1,801,311.62-724,507.77

Finding the Fourth Proportional to 1,305,318.70, 1,801,311.62 and 724,507.77

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Solution

The fourth proportional to 1,305,318.70, 1,801,311.62 and 724,507.77 is: 999,805.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,318.70 : 1,801,311.62 = 724,507.77 : x
  2. Step 2: Convert to fraction form
    1,305,318.70/1,801,311.62 = 724,507.77/x
  3. Step 3: Cross multiply
    1,305,318.70x = 1,801,311.62 × 724,507.77
  4. Step 4: Simplify right side
    1,305,318.70x = 1,305,064,252,815.10
  5. Step 5: Solve for x
    x = 1,305,064,252,815.10/1,305,318.70
  6. Step 6: Final answer
    x = 999,805.07

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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.