Home / 1,348,820.40-2,022,906.60-778,969.20

Finding the Fourth Proportional to 1,348,820.40, 2,022,906.60 and 778,969.20

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Solution

The fourth proportional to 1,348,820.40, 2,022,906.60 and 778,969.20 is: 1,168,266.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,820.40 : 2,022,906.60 = 778,969.20 : x
  2. Step 2: Convert to fraction form
    1,348,820.40/2,022,906.60 = 778,969.20/x
  3. Step 3: Cross multiply
    1,348,820.40x = 2,022,906.60 × 778,969.20
  4. Step 4: Simplify right side
    1,348,820.40x = 1,575,781,935,876.72
  5. Step 5: Solve for x
    x = 1,575,781,935,876.72/1,348,820.40
  6. Step 6: Final answer
    x = 1,168,266.68

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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.