Home / 910,286.40-1,362,805.20-805,310.40

Finding the Fourth Proportional to 910,286.40, 1,362,805.20 and 805,310.40

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Solution

The fourth proportional to 910,286.40, 1,362,805.20 and 805,310.40 is: 1,205,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,286.40 : 1,362,805.20 = 805,310.40 : x
  2. Step 2: Convert to fraction form
    910,286.40/1,362,805.20 = 805,310.40/x
  3. Step 3: Cross multiply
    910,286.40x = 1,362,805.20 × 805,310.40
  4. Step 4: Simplify right side
    910,286.40x = 1,097,481,200,734.08
  5. Step 5: Solve for x
    x = 1,097,481,200,734.08/910,286.40
  6. Step 6: Final answer
    x = 1,205,643.85

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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.