Home / 645,377.41-967,938.54-613,371.88

Finding the Fourth Proportional to 645,377.41, 967,938.54 and 613,371.88

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Solution

The fourth proportional to 645,377.41, 967,938.54 and 613,371.88 is: 919,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,377.41 : 967,938.54 = 613,371.88 : x
  2. Step 2: Convert to fraction form
    645,377.41/967,938.54 = 613,371.88/x
  3. Step 3: Cross multiply
    645,377.41x = 967,938.54 × 613,371.88
  4. Step 4: Simplify right side
    645,377.41x = 593,706,282,004.26
  5. Step 5: Solve for x
    x = 593,706,282,004.26/645,377.41
  6. Step 6: Final answer
    x = 919,936.57

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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.