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Finding the Fourth Proportional to 559,707.04, 772,404.48 and 305,057.92

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Solution

The fourth proportional to 559,707.04, 772,404.48 and 305,057.92 is: 420,984.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,707.04 : 772,404.48 = 305,057.92 : x
  2. Step 2: Convert to fraction form
    559,707.04/772,404.48 = 305,057.92/x
  3. Step 3: Cross multiply
    559,707.04x = 772,404.48 × 305,057.92
  4. Step 4: Simplify right side
    559,707.04x = 235,628,104,067.48
  5. Step 5: Solve for x
    x = 235,628,104,067.48/559,707.04
  6. Step 6: Final answer
    x = 420,984.71

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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.