Home / 661,058.12-911,924.42-431,749.75

Finding the Fourth Proportional to 661,058.12, 911,924.42 and 431,749.75

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Solution

The fourth proportional to 661,058.12, 911,924.42 and 431,749.75 is: 595,595.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,058.12 : 911,924.42 = 431,749.75 : x
  2. Step 2: Convert to fraction form
    661,058.12/911,924.42 = 431,749.75/x
  3. Step 3: Cross multiply
    661,058.12x = 911,924.42 × 431,749.75
  4. Step 4: Simplify right side
    661,058.12x = 393,723,133,635.52
  5. Step 5: Solve for x
    x = 393,723,133,635.52/661,058.12
  6. Step 6: Final answer
    x = 595,595.34

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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.