Home / 758,143.46-1,137,485.63-325,679.20

Finding the Fourth Proportional to 758,143.46, 1,137,485.63 and 325,679.20

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Solution

The fourth proportional to 758,143.46, 1,137,485.63 and 325,679.20 is: 488,634.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,143.46 : 1,137,485.63 = 325,679.20 : x
  2. Step 2: Convert to fraction form
    758,143.46/1,137,485.63 = 325,679.20/x
  3. Step 3: Cross multiply
    758,143.46x = 1,137,485.63 × 325,679.20
  4. Step 4: Simplify right side
    758,143.46x = 370,455,407,960.38
  5. Step 5: Solve for x
    x = 370,455,407,960.38/758,143.46
  6. Step 6: Final answer
    x = 488,634.97

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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.