Home / 2,120,261.78-3,180,426.35-522,825.32

Finding the Fourth Proportional to 2,120,261.78, 3,180,426.35 and 522,825.32

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Solution

The fourth proportional to 2,120,261.78, 3,180,426.35 and 522,825.32 is: 784,246.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,261.78 : 3,180,426.35 = 522,825.32 : x
  2. Step 2: Convert to fraction form
    2,120,261.78/3,180,426.35 = 522,825.32/x
  3. Step 3: Cross multiply
    2,120,261.78x = 3,180,426.35 × 522,825.32
  4. Step 4: Simplify right side
    2,120,261.78x = 1,662,807,405,658.92
  5. Step 5: Solve for x
    x = 1,662,807,405,658.92/2,120,261.78
  6. Step 6: Final answer
    x = 784,246.28

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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.