Home / 664,392.03-996,746.43-215,113.03

Finding the Fourth Proportional to 664,392.03, 996,746.43 and 215,113.03

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Solution

The fourth proportional to 664,392.03, 996,746.43 and 215,113.03 is: 322,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,392.03 : 996,746.43 = 215,113.03 : x
  2. Step 2: Convert to fraction form
    664,392.03/996,746.43 = 215,113.03/x
  3. Step 3: Cross multiply
    664,392.03x = 996,746.43 × 215,113.03
  4. Step 4: Simplify right side
    664,392.03x = 214,413,141,803.78
  5. Step 5: Solve for x
    x = 214,413,141,803.78/664,392.03
  6. Step 6: Final answer
    x = 322,720.82

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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.