Home / 815,427.60-1,223,141.40-741,944.40

Finding the Fourth Proportional to 815,427.60, 1,223,141.40 and 741,944.40

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Solution

The fourth proportional to 815,427.60, 1,223,141.40 and 741,944.40 is: 1,112,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,427.60 : 1,223,141.40 = 741,944.40 : x
  2. Step 2: Convert to fraction form
    815,427.60/1,223,141.40 = 741,944.40/x
  3. Step 3: Cross multiply
    815,427.60x = 1,223,141.40 × 741,944.40
  4. Step 4: Simplify right side
    815,427.60x = 907,502,912,138.16
  5. Step 5: Solve for x
    x = 907,502,912,138.16/815,427.60
  6. Step 6: Final answer
    x = 1,112,916.60

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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.