Home / 765,876.62-1,057,051.44-443,586.62

Finding the Fourth Proportional to 765,876.62, 1,057,051.44 and 443,586.62

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Solution

The fourth proportional to 765,876.62, 1,057,051.44 and 443,586.62 is: 612,231.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,876.62 : 1,057,051.44 = 443,586.62 : x
  2. Step 2: Convert to fraction form
    765,876.62/1,057,051.44 = 443,586.62/x
  3. Step 3: Cross multiply
    765,876.62x = 1,057,051.44 × 443,586.62
  4. Step 4: Simplify right side
    765,876.62x = 468,893,870,150.48
  5. Step 5: Solve for x
    x = 468,893,870,150.48/765,876.62
  6. Step 6: Final answer
    x = 612,231.61

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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.