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Finding the Fourth Proportional to 347,683.40, 487,456.60 and 347,683.40

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Solution

The fourth proportional to 347,683.40, 487,456.60 and 347,683.40 is: 487,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,683.40 : 487,456.60 = 347,683.40 : x
  2. Step 2: Convert to fraction form
    347,683.40/487,456.60 = 347,683.40/x
  3. Step 3: Cross multiply
    347,683.40x = 487,456.60 × 347,683.40
  4. Step 4: Simplify right side
    347,683.40x = 169,480,568,040.44
  5. Step 5: Solve for x
    x = 169,480,568,040.44/347,683.40
  6. Step 6: Final answer
    x = 487,456.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.