Home / 1,361,403.60-2,042,105.40-1,272,830.10

Finding the Fourth Proportional to 1,361,403.60, 2,042,105.40 and 1,272,830.10

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Solution

The fourth proportional to 1,361,403.60, 2,042,105.40 and 1,272,830.10 is: 1,909,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,403.60 : 2,042,105.40 = 1,272,830.10 : x
  2. Step 2: Convert to fraction form
    1,361,403.60/2,042,105.40 = 1,272,830.10/x
  3. Step 3: Cross multiply
    1,361,403.60x = 2,042,105.40 × 1,272,830.10
  4. Step 4: Simplify right side
    1,361,403.60x = 2,599,253,220,492.54
  5. Step 5: Solve for x
    x = 2,599,253,220,492.54/1,361,403.60
  6. Step 6: Final answer
    x = 1,909,245.15

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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.