Home / 406,979.48-609,849.54-207,000.20

Finding the Fourth Proportional to 406,979.48, 609,849.54 and 207,000.20

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Solution

The fourth proportional to 406,979.48, 609,849.54 and 207,000.20 is: 310,185.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,979.48 : 609,849.54 = 207,000.20 : x
  2. Step 2: Convert to fraction form
    406,979.48/609,849.54 = 207,000.20/x
  3. Step 3: Cross multiply
    406,979.48x = 609,849.54 × 207,000.20
  4. Step 4: Simplify right side
    406,979.48x = 126,238,976,749.91
  5. Step 5: Solve for x
    x = 126,238,976,749.91/406,979.48
  6. Step 6: Final answer
    x = 310,185.11

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1.5x scale

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.