Home / 945,920.48-1,305,399.08-538,081.43

Finding the Fourth Proportional to 945,920.48, 1,305,399.08 and 538,081.43

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Solution

The fourth proportional to 945,920.48, 1,305,399.08 and 538,081.43 is: 742,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,920.48 : 1,305,399.08 = 538,081.43 : x
  2. Step 2: Convert to fraction form
    945,920.48/1,305,399.08 = 538,081.43/x
  3. Step 3: Cross multiply
    945,920.48x = 1,305,399.08 × 538,081.43
  4. Step 4: Simplify right side
    945,920.48x = 702,410,998,505.29
  5. Step 5: Solve for x
    x = 702,410,998,505.29/945,920.48
  6. Step 6: Final answer
    x = 742,568.76

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1.5x scale

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.