Home / 986,789.78-1,480,183.80-371,408.71

Finding the Fourth Proportional to 986,789.78, 1,480,183.80 and 371,408.71

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Solution

The fourth proportional to 986,789.78, 1,480,183.80 and 371,408.71 is: 557,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,789.78 : 1,480,183.80 = 371,408.71 : x
  2. Step 2: Convert to fraction form
    986,789.78/1,480,183.80 = 371,408.71/x
  3. Step 3: Cross multiply
    986,789.78x = 1,480,183.80 × 371,408.71
  4. Step 4: Simplify right side
    986,789.78x = 549,753,153,763.51
  5. Step 5: Solve for x
    x = 549,753,153,763.51/986,789.78
  6. Step 6: Final answer
    x = 557,112.74

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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.