Home / 631,964.32-947,318.64-258,255.52

Finding the Fourth Proportional to 631,964.32, 947,318.64 and 258,255.52

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Solution

The fourth proportional to 631,964.32, 947,318.64 and 258,255.52 is: 387,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,964.32 : 947,318.64 = 258,255.52 : x
  2. Step 2: Convert to fraction form
    631,964.32/947,318.64 = 258,255.52/x
  3. Step 3: Cross multiply
    631,964.32x = 947,318.64 × 258,255.52
  4. Step 4: Simplify right side
    631,964.32x = 244,650,267,978.89
  5. Step 5: Solve for x
    x = 244,650,267,978.89/631,964.32
  6. Step 6: Final answer
    x = 387,126.71

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1.5x scale

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.