Home / 1,314,955.80-1,972,433.70-1,285,431.30

Finding the Fourth Proportional to 1,314,955.80, 1,972,433.70 and 1,285,431.30

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Solution

The fourth proportional to 1,314,955.80, 1,972,433.70 and 1,285,431.30 is: 1,928,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,955.80 : 1,972,433.70 = 1,285,431.30 : x
  2. Step 2: Convert to fraction form
    1,314,955.80/1,972,433.70 = 1,285,431.30/x
  3. Step 3: Cross multiply
    1,314,955.80x = 1,972,433.70 × 1,285,431.30
  4. Step 4: Simplify right side
    1,314,955.80x = 2,535,428,015,154.81
  5. Step 5: Solve for x
    x = 2,535,428,015,154.81/1,314,955.80
  6. Step 6: Final answer
    x = 1,928,146.95

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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.