Home / 1,211,794.60-1,817,691.90-788,780.20

Finding the Fourth Proportional to 1,211,794.60, 1,817,691.90 and 788,780.20

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Solution

The fourth proportional to 1,211,794.60, 1,817,691.90 and 788,780.20 is: 1,183,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,794.60 : 1,817,691.90 = 788,780.20 : x
  2. Step 2: Convert to fraction form
    1,211,794.60/1,817,691.90 = 788,780.20/x
  3. Step 3: Cross multiply
    1,211,794.60x = 1,817,691.90 × 788,780.20
  4. Step 4: Simplify right side
    1,211,794.60x = 1,433,759,380,420.38
  5. Step 5: Solve for x
    x = 1,433,759,380,420.38/1,211,794.60
  6. Step 6: Final answer
    x = 1,183,170.30

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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.