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Finding the Fourth Proportional to 681,284.42, 940,134.80 and 375,300.64

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Solution

The fourth proportional to 681,284.42, 940,134.80 and 375,300.64 is: 517,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,284.42 : 940,134.80 = 375,300.64 : x
  2. Step 2: Convert to fraction form
    681,284.42/940,134.80 = 375,300.64/x
  3. Step 3: Cross multiply
    681,284.42x = 940,134.80 × 375,300.64
  4. Step 4: Simplify right side
    681,284.42x = 352,833,194,239.69
  5. Step 5: Solve for x
    x = 352,833,194,239.69/681,284.42
  6. Step 6: Final answer
    x = 517,894.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.