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Finding the Fourth Proportional to 557,997.66, 770,042.25 and 303,354.30

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Solution

The fourth proportional to 557,997.66, 770,042.25 and 303,354.30 is: 418,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,997.66 : 770,042.25 = 303,354.30 : x
  2. Step 2: Convert to fraction form
    557,997.66/770,042.25 = 303,354.30/x
  3. Step 3: Cross multiply
    557,997.66x = 770,042.25 × 303,354.30
  4. Step 4: Simplify right side
    557,997.66x = 233,595,627,719.18
  5. Step 5: Solve for x
    x = 233,595,627,719.18/557,997.66
  6. Step 6: Final answer
    x = 418,631.91

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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.