Home / 862,497.45-1,189,439.18-681,641.45

Finding the Fourth Proportional to 862,497.45, 1,189,439.18 and 681,641.45

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Solution

The fourth proportional to 862,497.45, 1,189,439.18 and 681,641.45 is: 940,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,497.45 : 1,189,439.18 = 681,641.45 : x
  2. Step 2: Convert to fraction form
    862,497.45/1,189,439.18 = 681,641.45/x
  3. Step 3: Cross multiply
    862,497.45x = 1,189,439.18 × 681,641.45
  4. Step 4: Simplify right side
    862,497.45x = 810,771,045,003.16
  5. Step 5: Solve for x
    x = 810,771,045,003.16/862,497.45
  6. Step 6: Final answer
    x = 940,027.18

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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.