Home / 406,358.02-609,911.25-206,821

Finding the Fourth Proportional to 406,358.02, 609,911.25 and 206,821

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Solution

The fourth proportional to 406,358.02, 609,911.25 and 206,821 is: 310,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,358.02 : 609,911.25 = 206,821 : x
  2. Step 2: Convert to fraction form
    406,358.02/609,911.25 = 206,821/x
  3. Step 3: Cross multiply
    406,358.02x = 609,911.25 × 206,821
  4. Step 4: Simplify right side
    406,358.02x = 126,142,454,636.25
  5. Step 5: Solve for x
    x = 126,142,454,636.25/406,358.02
  6. Step 6: Final answer
    x = 310,421.96

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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.