Home / 406,749.08-561,319.38-223,004.92

Finding the Fourth Proportional to 406,749.08, 561,319.38 and 223,004.92

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Solution

The fourth proportional to 406,749.08, 561,319.38 and 223,004.92 is: 307,749.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,749.08 : 561,319.38 = 223,004.92 : x
  2. Step 2: Convert to fraction form
    406,749.08/561,319.38 = 223,004.92/x
  3. Step 3: Cross multiply
    406,749.08x = 561,319.38 × 223,004.92
  4. Step 4: Simplify right side
    406,749.08x = 125,176,983,431.35
  5. Step 5: Solve for x
    x = 125,176,983,431.35/406,749.08
  6. Step 6: Final answer
    x = 307,749.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.