Home / 1,030,867.30-1,422,644.77-643,911.82

Finding the Fourth Proportional to 1,030,867.30, 1,422,644.77 and 643,911.82

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Solution

The fourth proportional to 1,030,867.30, 1,422,644.77 and 643,911.82 is: 888,628.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,867.30 : 1,422,644.77 = 643,911.82 : x
  2. Step 2: Convert to fraction form
    1,030,867.30/1,422,644.77 = 643,911.82/x
  3. Step 3: Cross multiply
    1,030,867.30x = 1,422,644.77 × 643,911.82
  4. Step 4: Simplify right side
    1,030,867.30x = 916,057,783,064.18
  5. Step 5: Solve for x
    x = 916,057,783,064.18/1,030,867.30
  6. Step 6: Final answer
    x = 888,628.23

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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.