Home / 726,860.28-1,090,513.74-372,123.30

Finding the Fourth Proportional to 726,860.28, 1,090,513.74 and 372,123.30

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Solution

The fourth proportional to 726,860.28, 1,090,513.74 and 372,123.30 is: 558,299.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,860.28 : 1,090,513.74 = 372,123.30 : x
  2. Step 2: Convert to fraction form
    726,860.28/1,090,513.74 = 372,123.30/x
  3. Step 3: Cross multiply
    726,860.28x = 1,090,513.74 × 372,123.30
  4. Step 4: Simplify right side
    726,860.28x = 405,805,571,624.14
  5. Step 5: Solve for x
    x = 405,805,571,624.14/726,860.28
  6. Step 6: Final answer
    x = 558,299.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.