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Finding the Fourth Proportional to 557,707.13, 769,634.42 and 303,058.32

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Solution

The fourth proportional to 557,707.13, 769,634.42 and 303,058.32 is: 418,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,707.13 : 769,634.42 = 303,058.32 : x
  2. Step 2: Convert to fraction form
    557,707.13/769,634.42 = 303,058.32/x
  3. Step 3: Cross multiply
    557,707.13x = 769,634.42 × 303,058.32
  4. Step 4: Simplify right side
    557,707.13x = 233,244,114,339.37
  5. Step 5: Solve for x
    x = 233,244,114,339.37/557,707.13
  6. Step 6: Final answer
    x = 418,219.71

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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.