Home / 762,286.39-1,141,905.07-458,512.81

Finding the Fourth Proportional to 762,286.39, 1,141,905.07 and 458,512.81

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Solution

The fourth proportional to 762,286.39, 1,141,905.07 and 458,512.81 is: 686,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,286.39 : 1,141,905.07 = 458,512.81 : x
  2. Step 2: Convert to fraction form
    762,286.39/1,141,905.07 = 458,512.81/x
  3. Step 3: Cross multiply
    762,286.39x = 1,141,905.07 × 458,512.81
  4. Step 4: Simplify right side
    762,286.39x = 523,578,098,397.90
  5. Step 5: Solve for x
    x = 523,578,098,397.90/762,286.39
  6. Step 6: Final answer
    x = 686,852.22

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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.