Home / 859,621.48-1,185,092.06-685,781.55

Finding the Fourth Proportional to 859,621.48, 1,185,092.06 and 685,781.55

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Solution

The fourth proportional to 859,621.48, 1,185,092.06 and 685,781.55 is: 945,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,621.48 : 1,185,092.06 = 685,781.55 : x
  2. Step 2: Convert to fraction form
    859,621.48/1,185,092.06 = 685,781.55/x
  3. Step 3: Cross multiply
    859,621.48x = 1,185,092.06 × 685,781.55
  4. Step 4: Simplify right side
    859,621.48x = 812,714,274,672.20
  5. Step 5: Solve for x
    x = 812,714,274,672.20/859,621.48
  6. Step 6: Final answer
    x = 945,432.73

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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.