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Finding the Fourth Proportional to 520,722.77, 781,101.39 and 179,162.89

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Solution

The fourth proportional to 520,722.77, 781,101.39 and 179,162.89 is: 268,750.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,722.77 : 781,101.39 = 179,162.89 : x
  2. Step 2: Convert to fraction form
    520,722.77/781,101.39 = 179,162.89/x
  3. Step 3: Cross multiply
    520,722.77x = 781,101.39 × 179,162.89
  4. Step 4: Simplify right side
    520,722.77x = 139,944,382,415.42
  5. Step 5: Solve for x
    x = 139,944,382,415.42/520,722.77
  6. Step 6: Final answer
    x = 268,750.27

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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.