Home / 890,744.36-1,336,337.98-259,663.72

Finding the Fourth Proportional to 890,744.36, 1,336,337.98 and 259,663.72

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Solution

The fourth proportional to 890,744.36, 1,336,337.98 and 259,663.72 is: 389,560.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,744.36 : 1,336,337.98 = 259,663.72 : x
  2. Step 2: Convert to fraction form
    890,744.36/1,336,337.98 = 259,663.72/x
  3. Step 3: Cross multiply
    890,744.36x = 1,336,337.98 × 259,663.72
  4. Step 4: Simplify right side
    890,744.36x = 346,998,491,064.09
  5. Step 5: Solve for x
    x = 346,998,491,064.09/890,744.36
  6. Step 6: Final answer
    x = 389,560.13

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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.