Home / 1,209,070.60-1,811,532.30-788,129.80

Finding the Fourth Proportional to 1,209,070.60, 1,811,532.30 and 788,129.80

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Solution

The fourth proportional to 1,209,070.60, 1,811,532.30 and 788,129.80 is: 1,180,843.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,070.60 : 1,811,532.30 = 788,129.80 : x
  2. Step 2: Convert to fraction form
    1,209,070.60/1,811,532.30 = 788,129.80/x
  3. Step 3: Cross multiply
    1,209,070.60x = 1,811,532.30 × 788,129.80
  4. Step 4: Simplify right side
    1,209,070.60x = 1,427,722,589,292.54
  5. Step 5: Solve for x
    x = 1,427,722,589,292.54/1,209,070.60
  6. Step 6: Final answer
    x = 1,180,843.03

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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.