Home / 815,807.03-1,125,974.75-521,268.35

Finding the Fourth Proportional to 815,807.03, 1,125,974.75 and 521,268.35

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Solution

The fourth proportional to 815,807.03, 1,125,974.75 and 521,268.35 is: 719,453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,807.03 : 1,125,974.75 = 521,268.35 : x
  2. Step 2: Convert to fraction form
    815,807.03/1,125,974.75 = 521,268.35/x
  3. Step 3: Cross multiply
    815,807.03x = 1,125,974.75 × 521,268.35
  4. Step 4: Simplify right side
    815,807.03x = 586,934,991,837.95
  5. Step 5: Solve for x
    x = 586,934,991,837.95/815,807.03
  6. Step 6: Final answer
    x = 719,453.22

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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.