Home / 1,246,209.60-1,869,217.20-487,903.80

Finding the Fourth Proportional to 1,246,209.60, 1,869,217.20 and 487,903.80

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Solution

The fourth proportional to 1,246,209.60, 1,869,217.20 and 487,903.80 is: 731,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,209.60 : 1,869,217.20 = 487,903.80 : x
  2. Step 2: Convert to fraction form
    1,246,209.60/1,869,217.20 = 487,903.80/x
  3. Step 3: Cross multiply
    1,246,209.60x = 1,869,217.20 × 487,903.80
  4. Step 4: Simplify right side
    1,246,209.60x = 911,998,174,905.36
  5. Step 5: Solve for x
    x = 911,998,174,905.36/1,246,209.60
  6. Step 6: Final answer
    x = 731,817.65

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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.