Home / 664,487.30-996,828.76-215,058.80

Finding the Fourth Proportional to 664,487.30, 996,828.76 and 215,058.80

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Solution

The fourth proportional to 664,487.30, 996,828.76 and 215,058.80 is: 322,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,487.30 : 996,828.76 = 215,058.80 : x
  2. Step 2: Convert to fraction form
    664,487.30/996,828.76 = 215,058.80/x
  3. Step 3: Cross multiply
    664,487.30x = 996,828.76 × 215,058.80
  4. Step 4: Simplify right side
    664,487.30x = 214,376,796,931.09
  5. Step 5: Solve for x
    x = 214,376,796,931.09/664,487.30
  6. Step 6: Final answer
    x = 322,619.86

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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.