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Finding the Fourth Proportional to 476,709.88, 657,320.52 and 304,401.28

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Solution

The fourth proportional to 476,709.88, 657,320.52 and 304,401.28 is: 419,729.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,709.88 : 657,320.52 = 304,401.28 : x
  2. Step 2: Convert to fraction form
    476,709.88/657,320.52 = 304,401.28/x
  3. Step 3: Cross multiply
    476,709.88x = 657,320.52 × 304,401.28
  4. Step 4: Simplify right side
    476,709.88x = 200,089,207,658.27
  5. Step 5: Solve for x
    x = 200,089,207,658.27/476,709.88
  6. Step 6: Final answer
    x = 419,729.52

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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.