Home / 910,672.56-1,366,027.38-312,321.51

Finding the Fourth Proportional to 910,672.56, 1,366,027.38 and 312,321.51

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Solution

The fourth proportional to 910,672.56, 1,366,027.38 and 312,321.51 is: 468,488.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,672.56 : 1,366,027.38 = 312,321.51 : x
  2. Step 2: Convert to fraction form
    910,672.56/1,366,027.38 = 312,321.51/x
  3. Step 3: Cross multiply
    910,672.56x = 1,366,027.38 × 312,321.51
  4. Step 4: Simplify right side
    910,672.56x = 426,639,734,022.94
  5. Step 5: Solve for x
    x = 426,639,734,022.94/910,672.56
  6. Step 6: Final answer
    x = 468,488.62

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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.