Home / 347,713.90-521,570.85-331,384.30

Finding the Fourth Proportional to 347,713.90, 521,570.85 and 331,384.30

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Solution

The fourth proportional to 347,713.90, 521,570.85 and 331,384.30 is: 497,076.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,713.90 : 521,570.85 = 331,384.30 : x
  2. Step 2: Convert to fraction form
    347,713.90/521,570.85 = 331,384.30/x
  3. Step 3: Cross multiply
    347,713.90x = 521,570.85 × 331,384.30
  4. Step 4: Simplify right side
    347,713.90x = 172,840,391,027.66
  5. Step 5: Solve for x
    x = 172,840,391,027.66/347,713.90
  6. Step 6: Final answer
    x = 497,076.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.