Home / 545,784.54-817,771.73-331,905.48

Finding the Fourth Proportional to 545,784.54, 817,771.73 and 331,905.48

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Solution

The fourth proportional to 545,784.54, 817,771.73 and 331,905.48 is: 497,307.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,784.54 : 817,771.73 = 331,905.48 : x
  2. Step 2: Convert to fraction form
    545,784.54/817,771.73 = 331,905.48/x
  3. Step 3: Cross multiply
    545,784.54x = 817,771.73 × 331,905.48
  4. Step 4: Simplify right side
    545,784.54x = 271,422,916,916.55
  5. Step 5: Solve for x
    x = 271,422,916,916.55/545,784.54
  6. Step 6: Final answer
    x = 497,307.81

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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.