Home / 2,978,903.40-4,110,763.88-1,620,781.80

Finding the Fourth Proportional to 2,978,903.40, 4,110,763.88 and 1,620,781.80

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Solution

The fourth proportional to 2,978,903.40, 4,110,763.88 and 1,620,781.80 is: 2,236,612.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,978,903.40 : 4,110,763.88 = 1,620,781.80 : x
  2. Step 2: Convert to fraction form
    2,978,903.40/4,110,763.88 = 1,620,781.80/x
  3. Step 3: Cross multiply
    2,978,903.40x = 4,110,763.88 × 1,620,781.80
  4. Step 4: Simplify right side
    2,978,903.40x = 6,662,651,280,801.38
  5. Step 5: Solve for x
    x = 6,662,651,280,801.38/2,978,903.40
  6. Step 6: Final answer
    x = 2,236,612.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.