Home / 485,016.75-669,217.55-294,077.07

Finding the Fourth Proportional to 485,016.75, 669,217.55 and 294,077.07

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Solution

The fourth proportional to 485,016.75, 669,217.55 and 294,077.07 is: 405,762.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,016.75 : 669,217.55 = 294,077.07 : x
  2. Step 2: Convert to fraction form
    485,016.75/669,217.55 = 294,077.07/x
  3. Step 3: Cross multiply
    485,016.75x = 669,217.55 × 294,077.07
  4. Step 4: Simplify right side
    485,016.75x = 196,801,536,296.58
  5. Step 5: Solve for x
    x = 196,801,536,296.58/485,016.75
  6. Step 6: Final answer
    x = 405,762.35

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1.5x scale

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.