Home / 825,337.20-1,238,005.80-720,361.20

Finding the Fourth Proportional to 825,337.20, 1,238,005.80 and 720,361.20

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Solution

The fourth proportional to 825,337.20, 1,238,005.80 and 720,361.20 is: 1,080,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,337.20 : 1,238,005.80 = 720,361.20 : x
  2. Step 2: Convert to fraction form
    825,337.20/1,238,005.80 = 720,361.20/x
  3. Step 3: Cross multiply
    825,337.20x = 1,238,005.80 × 720,361.20
  4. Step 4: Simplify right side
    825,337.20x = 891,811,343,694.96
  5. Step 5: Solve for x
    x = 891,811,343,694.96/825,337.20
  6. Step 6: Final answer
    x = 1,080,541.80

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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.