Home / 645,190.71-967,723.50-195,915.47

Finding the Fourth Proportional to 645,190.71, 967,723.50 and 195,915.47

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Solution

The fourth proportional to 645,190.71, 967,723.50 and 195,915.47 is: 293,854.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,190.71 : 967,723.50 = 195,915.47 : x
  2. Step 2: Convert to fraction form
    645,190.71/967,723.50 = 195,915.47/x
  3. Step 3: Cross multiply
    645,190.71x = 967,723.50 × 195,915.47
  4. Step 4: Simplify right side
    645,190.71x = 189,592,004,332.55
  5. Step 5: Solve for x
    x = 189,592,004,332.55/645,190.71
  6. Step 6: Final answer
    x = 293,854.21

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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.