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Finding the Fourth Proportional to 571,479.35, 788,650.58 and 313,379.79

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Solution

The fourth proportional to 571,479.35, 788,650.58 and 313,379.79 is: 432,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,479.35 : 788,650.58 = 313,379.79 : x
  2. Step 2: Convert to fraction form
    571,479.35/788,650.58 = 313,379.79/x
  3. Step 3: Cross multiply
    571,479.35x = 788,650.58 × 313,379.79
  4. Step 4: Simplify right side
    571,479.35x = 247,147,149,207.03
  5. Step 5: Solve for x
    x = 247,147,149,207.03/571,479.35
  6. Step 6: Final answer
    x = 432,469.08

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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.