Home / 451,268.02-621,437.43-422,419.59

Finding the Fourth Proportional to 451,268.02, 621,437.43 and 422,419.59

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Solution

The fourth proportional to 451,268.02, 621,437.43 and 422,419.59 is: 581,710.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,268.02 : 621,437.43 = 422,419.59 : x
  2. Step 2: Convert to fraction form
    451,268.02/621,437.43 = 422,419.59/x
  3. Step 3: Cross multiply
    451,268.02x = 621,437.43 × 422,419.59
  4. Step 4: Simplify right side
    451,268.02x = 262,507,344,391.25
  5. Step 5: Solve for x
    x = 262,507,344,391.25/451,268.02
  6. Step 6: Final answer
    x = 581,710.50

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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.