Home / 763,729-1,145,305.50-613,600.36

Finding the Fourth Proportional to 763,729, 1,145,305.50 and 613,600.36

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Solution

The fourth proportional to 763,729, 1,145,305.50 and 613,600.36 is: 920,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,729 : 1,145,305.50 = 613,600.36 : x
  2. Step 2: Convert to fraction form
    763,729/1,145,305.50 = 613,600.36/x
  3. Step 3: Cross multiply
    763,729x = 1,145,305.50 × 613,600.36
  4. Step 4: Simplify right side
    763,729x = 702,759,867,109.98
  5. Step 5: Solve for x
    x = 702,759,867,109.98/763,729
  6. Step 6: Final answer
    x = 920,169.15

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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.