Home / 1,086,007.30-1,629,010.95-685,348.90

Finding the Fourth Proportional to 1,086,007.30, 1,629,010.95 and 685,348.90

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Solution

The fourth proportional to 1,086,007.30, 1,629,010.95 and 685,348.90 is: 1,028,023.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,007.30 : 1,629,010.95 = 685,348.90 : x
  2. Step 2: Convert to fraction form
    1,086,007.30/1,629,010.95 = 685,348.90/x
  3. Step 3: Cross multiply
    1,086,007.30x = 1,629,010.95 × 685,348.90
  4. Step 4: Simplify right side
    1,086,007.30x = 1,116,440,862,670.46
  5. Step 5: Solve for x
    x = 1,116,440,862,670.46/1,086,007.30
  6. Step 6: Final answer
    x = 1,028,023.35

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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.