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Finding the Fourth Proportional to 571,399.29, 788,371.49 and 450,164.31

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Solution

The fourth proportional to 571,399.29, 788,371.49 and 450,164.31 is: 621,101.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,399.29 : 788,371.49 = 450,164.31 : x
  2. Step 2: Convert to fraction form
    571,399.29/788,371.49 = 450,164.31/x
  3. Step 3: Cross multiply
    571,399.29x = 788,371.49 × 450,164.31
  4. Step 4: Simplify right side
    571,399.29x = 354,896,705,568.70
  5. Step 5: Solve for x
    x = 354,896,705,568.70/571,399.29
  6. Step 6: Final answer
    x = 621,101.06

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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.