Home / 842,764.47-1,264,183.61-243,786.17

Finding the Fourth Proportional to 842,764.47, 1,264,183.61 and 243,786.17

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Solution

The fourth proportional to 842,764.47, 1,264,183.61 and 243,786.17 is: 365,689.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,764.47 : 1,264,183.61 = 243,786.17 : x
  2. Step 2: Convert to fraction form
    842,764.47/1,264,183.61 = 243,786.17/x
  3. Step 3: Cross multiply
    842,764.47x = 1,264,183.61 × 243,786.17
  4. Step 4: Simplify right side
    842,764.47x = 308,190,472,918.83
  5. Step 5: Solve for x
    x = 308,190,472,918.83/842,764.47
  6. Step 6: Final answer
    x = 365,689.92

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Double scale
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1.5x scale

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.