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Finding the Fourth Proportional to 550,988.33, 760,382.93 and 305,977.21

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Solution

The fourth proportional to 550,988.33, 760,382.93 and 305,977.21 is: 422,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,988.33 : 760,382.93 = 305,977.21 : x
  2. Step 2: Convert to fraction form
    550,988.33/760,382.93 = 305,977.21/x
  3. Step 3: Cross multiply
    550,988.33x = 760,382.93 × 305,977.21
  4. Step 4: Simplify right side
    550,988.33x = 232,659,846,317.01
  5. Step 5: Solve for x
    x = 232,659,846,317.01/550,988.33
  6. Step 6: Final answer
    x = 422,259.12

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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.