Home / 546,829.20-819,660.60-209,739.60

Finding the Fourth Proportional to 546,829.20, 819,660.60 and 209,739.60

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Solution

The fourth proportional to 546,829.20, 819,660.60 and 209,739.60 is: 314,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,829.20 : 819,660.60 = 209,739.60 : x
  2. Step 2: Convert to fraction form
    546,829.20/819,660.60 = 209,739.60/x
  3. Step 3: Cross multiply
    546,829.20x = 819,660.60 × 209,739.60
  4. Step 4: Simplify right side
    546,829.20x = 171,915,286,379.76
  5. Step 5: Solve for x
    x = 171,915,286,379.76/546,829.20
  6. Step 6: Final answer
    x = 314,385.71

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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.