Home / 2,820,764.40-3,892,659.48-1,531,607.28

Finding the Fourth Proportional to 2,820,764.40, 3,892,659.48 and 1,531,607.28

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Solution

The fourth proportional to 2,820,764.40, 3,892,659.48 and 1,531,607.28 is: 2,113,620.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820,764.40 : 3,892,659.48 = 1,531,607.28 : x
  2. Step 2: Convert to fraction form
    2,820,764.40/3,892,659.48 = 1,531,607.28/x
  3. Step 3: Cross multiply
    2,820,764.40x = 3,892,659.48 × 1,531,607.28
  4. Step 4: Simplify right side
    2,820,764.40x = 5,962,025,598,129.02
  5. Step 5: Solve for x
    x = 5,962,025,598,129.02/2,820,764.40
  6. Step 6: Final answer
    x = 2,113,620.55

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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.