Home / 809,732.40-1,214,015.40-454,855.20

Finding the Fourth Proportional to 809,732.40, 1,214,015.40 and 454,855.20

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Solution

The fourth proportional to 809,732.40, 1,214,015.40 and 454,855.20 is: 681,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,732.40 : 1,214,015.40 = 454,855.20 : x
  2. Step 2: Convert to fraction form
    809,732.40/1,214,015.40 = 454,855.20/x
  3. Step 3: Cross multiply
    809,732.40x = 1,214,015.40 × 454,855.20
  4. Step 4: Simplify right side
    809,732.40x = 552,201,217,570.08
  5. Step 5: Solve for x
    x = 552,201,217,570.08/809,732.40
  6. Step 6: Final answer
    x = 681,955.20

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1.5x scale

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.