Home / 977,106.40-1,465,659.60-809,144.80

Finding the Fourth Proportional to 977,106.40, 1,465,659.60 and 809,144.80

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Solution

The fourth proportional to 977,106.40, 1,465,659.60 and 809,144.80 is: 1,213,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,106.40 : 1,465,659.60 = 809,144.80 : x
  2. Step 2: Convert to fraction form
    977,106.40/1,465,659.60 = 809,144.80/x
  3. Step 3: Cross multiply
    977,106.40x = 1,465,659.60 × 809,144.80
  4. Step 4: Simplify right side
    977,106.40x = 1,185,930,843,910.08
  5. Step 5: Solve for x
    x = 1,185,930,843,910.08/977,106.40
  6. Step 6: Final answer
    x = 1,213,717.20

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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.