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Finding the Fourth Proportional to 557,715.72, 769,632.18 and 303,058.44

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Solution

The fourth proportional to 557,715.72, 769,632.18 and 303,058.44 is: 418,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,715.72 : 769,632.18 = 303,058.44 : x
  2. Step 2: Convert to fraction form
    557,715.72/769,632.18 = 303,058.44/x
  3. Step 3: Cross multiply
    557,715.72x = 769,632.18 × 303,058.44
  4. Step 4: Simplify right side
    557,715.72x = 233,243,527,844.60
  5. Step 5: Solve for x
    x = 233,243,527,844.60/557,715.72
  6. Step 6: Final answer
    x = 418,212.22

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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.