Home / 3,309,985.60-4,964,978.40-1,180,139.20

Finding the Fourth Proportional to 3,309,985.60, 4,964,978.40 and 1,180,139.20

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Solution

The fourth proportional to 3,309,985.60, 4,964,978.40 and 1,180,139.20 is: 1,770,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309,985.60 : 4,964,978.40 = 1,180,139.20 : x
  2. Step 2: Convert to fraction form
    3,309,985.60/4,964,978.40 = 1,180,139.20/x
  3. Step 3: Cross multiply
    3,309,985.60x = 4,964,978.40 × 1,180,139.20
  4. Step 4: Simplify right side
    3,309,985.60x = 5,859,365,636,993.28
  5. Step 5: Solve for x
    x = 5,859,365,636,993.28/3,309,985.60
  6. Step 6: Final answer
    x = 1,770,208.80

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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.