Home / 986,513.40-1,479,770.10-809,220.60

Finding the Fourth Proportional to 986,513.40, 1,479,770.10 and 809,220.60

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Solution

The fourth proportional to 986,513.40, 1,479,770.10 and 809,220.60 is: 1,213,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,513.40 : 1,479,770.10 = 809,220.60 : x
  2. Step 2: Convert to fraction form
    986,513.40/1,479,770.10 = 809,220.60/x
  3. Step 3: Cross multiply
    986,513.40x = 1,479,770.10 × 809,220.60
  4. Step 4: Simplify right side
    986,513.40x = 1,197,460,448,184.06
  5. Step 5: Solve for x
    x = 1,197,460,448,184.06/986,513.40
  6. Step 6: Final answer
    x = 1,213,830.90

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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.