Home / 875,106.20-1,312,659.30-800,310.80

Finding the Fourth Proportional to 875,106.20, 1,312,659.30 and 800,310.80

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Solution

The fourth proportional to 875,106.20, 1,312,659.30 and 800,310.80 is: 1,200,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,106.20 : 1,312,659.30 = 800,310.80 : x
  2. Step 2: Convert to fraction form
    875,106.20/1,312,659.30 = 800,310.80/x
  3. Step 3: Cross multiply
    875,106.20x = 1,312,659.30 × 800,310.80
  4. Step 4: Simplify right side
    875,106.20x = 1,050,535,414,510.44
  5. Step 5: Solve for x
    x = 1,050,535,414,510.44/875,106.20
  6. Step 6: Final answer
    x = 1,200,466.20

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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.