Home / 1,045,619.80-1,569,984.90-809,229.40

Finding the Fourth Proportional to 1,045,619.80, 1,569,984.90 and 809,229.40

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Solution

The fourth proportional to 1,045,619.80, 1,569,984.90 and 809,229.40 is: 1,215,047.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,619.80 : 1,569,984.90 = 809,229.40 : x
  2. Step 2: Convert to fraction form
    1,045,619.80/1,569,984.90 = 809,229.40/x
  3. Step 3: Cross multiply
    1,045,619.80x = 1,569,984.90 × 809,229.40
  4. Step 4: Simplify right side
    1,045,619.80x = 1,270,477,938,636.06
  5. Step 5: Solve for x
    x = 1,270,477,938,636.06/1,045,619.80
  6. Step 6: Final answer
    x = 1,215,047.71

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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.