Home / 823,685.15-1,235,054.66-438,960.35

Finding the Fourth Proportional to 823,685.15, 1,235,054.66 and 438,960.35

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Solution

The fourth proportional to 823,685.15, 1,235,054.66 and 438,960.35 is: 658,188.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,685.15 : 1,235,054.66 = 438,960.35 : x
  2. Step 2: Convert to fraction form
    823,685.15/1,235,054.66 = 438,960.35/x
  3. Step 3: Cross multiply
    823,685.15x = 1,235,054.66 × 438,960.35
  4. Step 4: Simplify right side
    823,685.15x = 542,140,017,452.66
  5. Step 5: Solve for x
    x = 542,140,017,452.66/823,685.15
  6. Step 6: Final answer
    x = 658,188.41

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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.