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Finding the Fourth Proportional to 520,504.04, 780,833.82 and 165,529.64

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Solution

The fourth proportional to 520,504.04, 780,833.82 and 165,529.64 is: 248,319.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,504.04 : 780,833.82 = 165,529.64 : x
  2. Step 2: Convert to fraction form
    520,504.04/780,833.82 = 165,529.64/x
  3. Step 3: Cross multiply
    520,504.04x = 780,833.82 × 165,529.64
  4. Step 4: Simplify right side
    520,504.04x = 129,251,141,124.43
  5. Step 5: Solve for x
    x = 129,251,141,124.43/520,504.04
  6. Step 6: Final answer
    x = 248,319.19

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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.