Home / 825,205.20-1,237,807.80-720,229.20

Finding the Fourth Proportional to 825,205.20, 1,237,807.80 and 720,229.20

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Solution

The fourth proportional to 825,205.20, 1,237,807.80 and 720,229.20 is: 1,080,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,205.20 : 1,237,807.80 = 720,229.20 : x
  2. Step 2: Convert to fraction form
    825,205.20/1,237,807.80 = 720,229.20/x
  3. Step 3: Cross multiply
    825,205.20x = 1,237,807.80 × 720,229.20
  4. Step 4: Simplify right side
    825,205.20x = 891,505,321,547.76
  5. Step 5: Solve for x
    x = 891,505,321,547.76/825,205.20
  6. Step 6: Final answer
    x = 1,080,343.80

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1.5x scale

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.