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Finding the Fourth Proportional to 557,998.26, 770,004.90 and 303,347.22

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Solution

The fourth proportional to 557,998.26, 770,004.90 and 303,347.22 is: 418,601.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,998.26 : 770,004.90 = 303,347.22 : x
  2. Step 2: Convert to fraction form
    557,998.26/770,004.90 = 303,347.22/x
  3. Step 3: Cross multiply
    557,998.26x = 770,004.90 × 303,347.22
  4. Step 4: Simplify right side
    557,998.26x = 233,578,845,801.38
  5. Step 5: Solve for x
    x = 233,578,845,801.38/557,998.26
  6. Step 6: Final answer
    x = 418,601.39

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Double scale
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Similar ratio
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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.