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Finding the Fourth Proportional to 545,353, 817,789.74 and 292,558.48

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Solution

The fourth proportional to 545,353, 817,789.74 and 292,558.48 is: 438,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,353 : 817,789.74 = 292,558.48 : x
  2. Step 2: Convert to fraction form
    545,353/817,789.74 = 292,558.48/x
  3. Step 3: Cross multiply
    545,353x = 817,789.74 × 292,558.48
  4. Step 4: Simplify right side
    545,353x = 239,251,323,294.00
  5. Step 5: Solve for x
    x = 239,251,323,294.00/545,353
  6. Step 6: Final answer
    x = 438,709.10

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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.