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Finding the Fourth Proportional to 486,715.44, 730,260.13 and 342,759.41

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Solution

The fourth proportional to 486,715.44, 730,260.13 and 342,759.41 is: 514,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,715.44 : 730,260.13 = 342,759.41 : x
  2. Step 2: Convert to fraction form
    486,715.44/730,260.13 = 342,759.41/x
  3. Step 3: Cross multiply
    486,715.44x = 730,260.13 × 342,759.41
  4. Step 4: Simplify right side
    486,715.44x = 250,303,532,274.08
  5. Step 5: Solve for x
    x = 250,303,532,274.08/486,715.44
  6. Step 6: Final answer
    x = 514,270.79

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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.