Home / 1,422,785.80-2,133,449.10-425,384.20

Finding the Fourth Proportional to 1,422,785.80, 2,133,449.10 and 425,384.20

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Solution

The fourth proportional to 1,422,785.80, 2,133,449.10 and 425,384.20 is: 637,858.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,785.80 : 2,133,449.10 = 425,384.20 : x
  2. Step 2: Convert to fraction form
    1,422,785.80/2,133,449.10 = 425,384.20/x
  3. Step 3: Cross multiply
    1,422,785.80x = 2,133,449.10 × 425,384.20
  4. Step 4: Simplify right side
    1,422,785.80x = 907,535,538,644.22
  5. Step 5: Solve for x
    x = 907,535,538,644.22/1,422,785.80
  6. Step 6: Final answer
    x = 637,858.16

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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.