Home / 1,313,372.82-1,812,535.71-724,669.38

Finding the Fourth Proportional to 1,313,372.82, 1,812,535.71 and 724,669.38

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Solution

The fourth proportional to 1,313,372.82, 1,812,535.71 and 724,669.38 is: 1,000,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,372.82 : 1,812,535.71 = 724,669.38 : x
  2. Step 2: Convert to fraction form
    1,313,372.82/1,812,535.71 = 724,669.38/x
  3. Step 3: Cross multiply
    1,313,372.82x = 1,812,535.71 × 724,669.38
  4. Step 4: Simplify right side
    1,313,372.82x = 1,313,489,116,507.53
  5. Step 5: Solve for x
    x = 1,313,489,116,507.53/1,313,372.82
  6. Step 6: Final answer
    x = 1,000,088.55

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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.