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Finding the Fourth Proportional to 557,680.08, 769,597.06 and 303,031.30

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Solution

The fourth proportional to 557,680.08, 769,597.06 and 303,031.30 is: 418,182.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,680.08 : 769,597.06 = 303,031.30 : x
  2. Step 2: Convert to fraction form
    557,680.08/769,597.06 = 303,031.30/x
  3. Step 3: Cross multiply
    557,680.08x = 769,597.06 × 303,031.30
  4. Step 4: Simplify right side
    557,680.08x = 233,211,997,567.98
  5. Step 5: Solve for x
    x = 233,211,997,567.98/557,680.08
  6. Step 6: Final answer
    x = 418,182.41

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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.