Home / 379,542.22-523,795.43-209,772.70

Finding the Fourth Proportional to 379,542.22, 523,795.43 and 209,772.70

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Solution

The fourth proportional to 379,542.22, 523,795.43 and 209,772.70 is: 289,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,542.22 : 523,795.43 = 209,772.70 : x
  2. Step 2: Convert to fraction form
    379,542.22/523,795.43 = 209,772.70/x
  3. Step 3: Cross multiply
    379,542.22x = 523,795.43 × 209,772.70
  4. Step 4: Simplify right side
    379,542.22x = 109,877,981,598.76
  5. Step 5: Solve for x
    x = 109,877,981,598.76/379,542.22
  6. Step 6: Final answer
    x = 289,501.34

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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.