Home / 1,129,731.18-1,694,596.43-331,012.50

Finding the Fourth Proportional to 1,129,731.18, 1,694,596.43 and 331,012.50

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Solution

The fourth proportional to 1,129,731.18, 1,694,596.43 and 331,012.50 is: 496,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,731.18 : 1,694,596.43 = 331,012.50 : x
  2. Step 2: Convert to fraction form
    1,129,731.18/1,694,596.43 = 331,012.50/x
  3. Step 3: Cross multiply
    1,129,731.18x = 1,694,596.43 × 331,012.50
  4. Step 4: Simplify right side
    1,129,731.18x = 560,932,599,130.31
  5. Step 5: Solve for x
    x = 560,932,599,130.31/1,129,731.18
  6. Step 6: Final answer
    x = 496,518.65

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Double scale
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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.