Home / 1,691,389.74-2,537,648.60-1,125,003.72

Finding the Fourth Proportional to 1,691,389.74, 2,537,648.60 and 1,125,003.72

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Solution

The fourth proportional to 1,691,389.74, 2,537,648.60 and 1,125,003.72 is: 1,687,880.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,389.74 : 2,537,648.60 = 1,125,003.72 : x
  2. Step 2: Convert to fraction form
    1,691,389.74/2,537,648.60 = 1,125,003.72/x
  3. Step 3: Cross multiply
    1,691,389.74x = 2,537,648.60 × 1,125,003.72
  4. Step 4: Simplify right side
    1,691,389.74x = 2,854,864,109,427.77
  5. Step 5: Solve for x
    x = 2,854,864,109,427.77/1,691,389.74
  6. Step 6: Final answer
    x = 1,687,880.71

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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.