Home / 842,706.54-1,264,185.87-310,187.04

Finding the Fourth Proportional to 842,706.54, 1,264,185.87 and 310,187.04

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Solution

The fourth proportional to 842,706.54, 1,264,185.87 and 310,187.04 is: 465,326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,706.54 : 1,264,185.87 = 310,187.04 : x
  2. Step 2: Convert to fraction form
    842,706.54/1,264,185.87 = 310,187.04/x
  3. Step 3: Cross multiply
    842,706.54x = 1,264,185.87 × 310,187.04
  4. Step 4: Simplify right side
    842,706.54x = 392,134,073,025.13
  5. Step 5: Solve for x
    x = 392,134,073,025.13/842,706.54
  6. Step 6: Final answer
    x = 465,326.96

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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.