Home / 685,600.42-1,028,015.96-469,703.12

Finding the Fourth Proportional to 685,600.42, 1,028,015.96 and 469,703.12

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Solution

The fourth proportional to 685,600.42, 1,028,015.96 and 469,703.12 is: 704,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,600.42 : 1,028,015.96 = 469,703.12 : x
  2. Step 2: Convert to fraction form
    685,600.42/1,028,015.96 = 469,703.12/x
  3. Step 3: Cross multiply
    685,600.42x = 1,028,015.96 × 469,703.12
  4. Step 4: Simplify right side
    685,600.42x = 482,862,303,821.80
  5. Step 5: Solve for x
    x = 482,862,303,821.80/685,600.42
  6. Step 6: Final answer
    x = 704,291.14

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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.