Home / 1,260,212.60-1,890,434.10-512,103.80

Finding the Fourth Proportional to 1,260,212.60, 1,890,434.10 and 512,103.80

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Solution

The fourth proportional to 1,260,212.60, 1,890,434.10 and 512,103.80 is: 768,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,212.60 : 1,890,434.10 = 512,103.80 : x
  2. Step 2: Convert to fraction form
    1,260,212.60/1,890,434.10 = 512,103.80/x
  3. Step 3: Cross multiply
    1,260,212.60x = 1,890,434.10 × 512,103.80
  4. Step 4: Simplify right side
    1,260,212.60x = 968,098,486,259.58
  5. Step 5: Solve for x
    x = 968,098,486,259.58/1,260,212.60
  6. Step 6: Final answer
    x = 768,202.51

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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.