Home / 820,177.40-1,230,266.10-788,684.60

Finding the Fourth Proportional to 820,177.40, 1,230,266.10 and 788,684.60

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Solution

The fourth proportional to 820,177.40, 1,230,266.10 and 788,684.60 is: 1,183,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,177.40 : 1,230,266.10 = 788,684.60 : x
  2. Step 2: Convert to fraction form
    820,177.40/1,230,266.10 = 788,684.60/x
  3. Step 3: Cross multiply
    820,177.40x = 1,230,266.10 × 788,684.60
  4. Step 4: Simplify right side
    820,177.40x = 970,291,926,972.06
  5. Step 5: Solve for x
    x = 970,291,926,972.06/820,177.40
  6. Step 6: Final answer
    x = 1,183,026.90

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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.