Home / 1,515,612.90-2,091,775.68-942,837.60

Finding the Fourth Proportional to 1,515,612.90, 2,091,775.68 and 942,837.60

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Solution

The fourth proportional to 1,515,612.90, 2,091,775.68 and 942,837.60 is: 1,301,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,612.90 : 2,091,775.68 = 942,837.60 : x
  2. Step 2: Convert to fraction form
    1,515,612.90/2,091,775.68 = 942,837.60/x
  3. Step 3: Cross multiply
    1,515,612.90x = 2,091,775.68 × 942,837.60
  4. Step 4: Simplify right side
    1,515,612.90x = 1,972,204,761,869.57
  5. Step 5: Solve for x
    x = 1,972,204,761,869.57/1,515,612.90
  6. Step 6: Final answer
    x = 1,301,258.89

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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.