Home / 809,675.40-1,213,929.90-454,798.20

Finding the Fourth Proportional to 809,675.40, 1,213,929.90 and 454,798.20

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Solution

The fourth proportional to 809,675.40, 1,213,929.90 and 454,798.20 is: 681,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,675.40 : 1,213,929.90 = 454,798.20 : x
  2. Step 2: Convert to fraction form
    809,675.40/1,213,929.90 = 454,798.20/x
  3. Step 3: Cross multiply
    809,675.40x = 1,213,929.90 × 454,798.20
  4. Step 4: Simplify right side
    809,675.40x = 552,093,133,446.18
  5. Step 5: Solve for x
    x = 552,093,133,446.18/809,675.40
  6. Step 6: Final answer
    x = 681,869.71

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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.