Home / 347,815.80-521,723.70-307,726.20

Finding the Fourth Proportional to 347,815.80, 521,723.70 and 307,726.20

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Solution

The fourth proportional to 347,815.80, 521,723.70 and 307,726.20 is: 461,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,815.80 : 521,723.70 = 307,726.20 : x
  2. Step 2: Convert to fraction form
    347,815.80/521,723.70 = 307,726.20/x
  3. Step 3: Cross multiply
    347,815.80x = 521,723.70 × 307,726.20
  4. Step 4: Simplify right side
    347,815.80x = 160,548,051,650.94
  5. Step 5: Solve for x
    x = 160,548,051,650.94/347,815.80
  6. Step 6: Final answer
    x = 461,589.30

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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.