Home / 977,180.40-1,465,770.60-809,218.80

Finding the Fourth Proportional to 977,180.40, 1,465,770.60 and 809,218.80

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Solution

The fourth proportional to 977,180.40, 1,465,770.60 and 809,218.80 is: 1,213,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,180.40 : 1,465,770.60 = 809,218.80 : x
  2. Step 2: Convert to fraction form
    977,180.40/1,465,770.60 = 809,218.80/x
  3. Step 3: Cross multiply
    977,180.40x = 1,465,770.60 × 809,218.80
  4. Step 4: Simplify right side
    977,180.40x = 1,186,129,126,007.28
  5. Step 5: Solve for x
    x = 1,186,129,126,007.28/977,180.40
  6. Step 6: Final answer
    x = 1,213,828.20

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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.