Home / 685,200.24-1,027,898.64-211,922.28

Finding the Fourth Proportional to 685,200.24, 1,027,898.64 and 211,922.28

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Solution

The fourth proportional to 685,200.24, 1,027,898.64 and 211,922.28 is: 317,913.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,200.24 : 1,027,898.64 = 211,922.28 : x
  2. Step 2: Convert to fraction form
    685,200.24/1,027,898.64 = 211,922.28/x
  3. Step 3: Cross multiply
    685,200.24x = 1,027,898.64 × 211,922.28
  4. Step 4: Simplify right side
    685,200.24x = 217,834,623,397.70
  5. Step 5: Solve for x
    x = 217,834,623,397.70/685,200.24
  6. Step 6: Final answer
    x = 317,913.82

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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.