Home / 1,317,318.72-1,816,896.79-1,133,869.50

Finding the Fourth Proportional to 1,317,318.72, 1,816,896.79 and 1,133,869.50

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Solution

The fourth proportional to 1,317,318.72, 1,816,896.79 and 1,133,869.50 is: 1,563,876.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,318.72 : 1,816,896.79 = 1,133,869.50 : x
  2. Step 2: Convert to fraction form
    1,317,318.72/1,816,896.79 = 1,133,869.50/x
  3. Step 3: Cross multiply
    1,317,318.72x = 1,816,896.79 × 1,133,869.50
  4. Step 4: Simplify right side
    1,317,318.72x = 2,060,123,854,828.91
  5. Step 5: Solve for x
    x = 2,060,123,854,828.91/1,317,318.72
  6. Step 6: Final answer
    x = 1,563,876.55

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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.