Home / 1,204,004.79-1,661,462.96-687,657.20

Finding the Fourth Proportional to 1,204,004.79, 1,661,462.96 and 687,657.20

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Solution

The fourth proportional to 1,204,004.79, 1,661,462.96 and 687,657.20 is: 948,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,004.79 : 1,661,462.96 = 687,657.20 : x
  2. Step 2: Convert to fraction form
    1,204,004.79/1,661,462.96 = 687,657.20/x
  3. Step 3: Cross multiply
    1,204,004.79x = 1,661,462.96 × 687,657.20
  4. Step 4: Simplify right side
    1,204,004.79x = 1,142,516,955,231.71
  5. Step 5: Solve for x
    x = 1,142,516,955,231.71/1,204,004.79
  6. Step 6: Final answer
    x = 948,930.57

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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.