Home / 867,185.44-1,299,693.76-417,821.92

Finding the Fourth Proportional to 867,185.44, 1,299,693.76 and 417,821.92

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Solution

The fourth proportional to 867,185.44, 1,299,693.76 and 417,821.92 is: 626,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,185.44 : 1,299,693.76 = 417,821.92 : x
  2. Step 2: Convert to fraction form
    867,185.44/1,299,693.76 = 417,821.92/x
  3. Step 3: Cross multiply
    867,185.44x = 1,299,693.76 × 417,821.92
  4. Step 4: Simplify right side
    867,185.44x = 543,040,542,215.22
  5. Step 5: Solve for x
    x = 543,040,542,215.22/867,185.44
  6. Step 6: Final answer
    x = 626,210.40

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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.