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Finding the Fourth Proportional to 520,529.76, 780,794.64 and 165,544.56

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Solution

The fourth proportional to 520,529.76, 780,794.64 and 165,544.56 is: 248,316.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,529.76 : 780,794.64 = 165,544.56 : x
  2. Step 2: Convert to fraction form
    520,529.76/780,794.64 = 165,544.56/x
  3. Step 3: Cross multiply
    520,529.76x = 780,794.64 × 165,544.56
  4. Step 4: Simplify right side
    520,529.76x = 129,256,305,129.16
  5. Step 5: Solve for x
    x = 129,256,305,129.16/520,529.76
  6. Step 6: Final answer
    x = 248,316.84

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1.5x scale

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.