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Finding the Fourth Proportional to 545,028.75, 817,572.29 and 171,080.91

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Solution

The fourth proportional to 545,028.75, 817,572.29 and 171,080.91 is: 256,630.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,028.75 : 817,572.29 = 171,080.91 : x
  2. Step 2: Convert to fraction form
    545,028.75/817,572.29 = 171,080.91/x
  3. Step 3: Cross multiply
    545,028.75x = 817,572.29 × 171,080.91
  4. Step 4: Simplify right side
    545,028.75x = 139,871,010,508.58
  5. Step 5: Solve for x
    x = 139,871,010,508.58/545,028.75
  6. Step 6: Final answer
    x = 256,630.52

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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.