Home / 1,427,850.78-1,970,308.56-815,882.01

Finding the Fourth Proportional to 1,427,850.78, 1,970,308.56 and 815,882.01

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Solution

The fourth proportional to 1,427,850.78, 1,970,308.56 and 815,882.01 is: 1,125,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,850.78 : 1,970,308.56 = 815,882.01 : x
  2. Step 2: Convert to fraction form
    1,427,850.78/1,970,308.56 = 815,882.01/x
  3. Step 3: Cross multiply
    1,427,850.78x = 1,970,308.56 × 815,882.01
  4. Step 4: Simplify right side
    1,427,850.78x = 1,607,539,308,253.01
  5. Step 5: Solve for x
    x = 1,607,539,308,253.01/1,427,850.78
  6. Step 6: Final answer
    x = 1,125,845.45

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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.