Home / 1,238,351.27-1,708,939.08-687,077.35

Finding the Fourth Proportional to 1,238,351.27, 1,708,939.08 and 687,077.35

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Solution

The fourth proportional to 1,238,351.27, 1,708,939.08 and 687,077.35 is: 948,174.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,351.27 : 1,708,939.08 = 687,077.35 : x
  2. Step 2: Convert to fraction form
    1,238,351.27/1,708,939.08 = 687,077.35/x
  3. Step 3: Cross multiply
    1,238,351.27x = 1,708,939.08 × 687,077.35
  4. Step 4: Simplify right side
    1,238,351.27x = 1,174,173,330,125.49
  5. Step 5: Solve for x
    x = 1,174,173,330,125.49/1,238,351.27
  6. Step 6: Final answer
    x = 948,174.69

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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.