Home / 855,191.40-1,281,436.71-694,485.28

Finding the Fourth Proportional to 855,191.40, 1,281,436.71 and 694,485.28

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Solution

The fourth proportional to 855,191.40, 1,281,436.71 and 694,485.28 is: 1,040,631.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,191.40 : 1,281,436.71 = 694,485.28 : x
  2. Step 2: Convert to fraction form
    855,191.40/1,281,436.71 = 694,485.28/x
  3. Step 3: Cross multiply
    855,191.40x = 1,281,436.71 × 694,485.28
  4. Step 4: Simplify right side
    855,191.40x = 889,938,932,346.63
  5. Step 5: Solve for x
    x = 889,938,932,346.63/855,191.40
  6. Step 6: Final answer
    x = 1,040,631.29

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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.