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Finding the Fourth Proportional to 628,048.72, 866,698.86 and 341,562.64

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Solution

The fourth proportional to 628,048.72, 866,698.86 and 341,562.64 is: 471,351.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,048.72 : 866,698.86 = 341,562.64 : x
  2. Step 2: Convert to fraction form
    628,048.72/866,698.86 = 341,562.64/x
  3. Step 3: Cross multiply
    628,048.72x = 866,698.86 × 341,562.64
  4. Step 4: Simplify right side
    628,048.72x = 296,031,950,706.59
  5. Step 5: Solve for x
    x = 296,031,950,706.59/628,048.72
  6. Step 6: Final answer
    x = 471,351.89

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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.