Home / 819,917.40-1,229,876.10-788,424.60

Finding the Fourth Proportional to 819,917.40, 1,229,876.10 and 788,424.60

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Solution

The fourth proportional to 819,917.40, 1,229,876.10 and 788,424.60 is: 1,182,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,917.40 : 1,229,876.10 = 788,424.60 : x
  2. Step 2: Convert to fraction form
    819,917.40/1,229,876.10 = 788,424.60/x
  3. Step 3: Cross multiply
    819,917.40x = 1,229,876.10 × 788,424.60
  4. Step 4: Simplify right side
    819,917.40x = 969,664,572,192.06
  5. Step 5: Solve for x
    x = 969,664,572,192.06/819,917.40
  6. Step 6: Final answer
    x = 1,182,636.90

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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.