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Finding the Fourth Proportional to 557,983.40, 770,008.02 and 303,341

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Solution

The fourth proportional to 557,983.40, 770,008.02 and 303,341 is: 418,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,983.40 : 770,008.02 = 303,341 : x
  2. Step 2: Convert to fraction form
    557,983.40/770,008.02 = 303,341/x
  3. Step 3: Cross multiply
    557,983.40x = 770,008.02 × 303,341
  4. Step 4: Simplify right side
    557,983.40x = 233,575,002,794.82
  5. Step 5: Solve for x
    x = 233,575,002,794.82/557,983.40
  6. Step 6: Final answer
    x = 418,605.65

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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.