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Finding the Fourth Proportional to 389,529.28, 582,756.56 and 295,031.68

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Solution

The fourth proportional to 389,529.28, 582,756.56 and 295,031.68 is: 441,383.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,529.28 : 582,756.56 = 295,031.68 : x
  2. Step 2: Convert to fraction form
    389,529.28/582,756.56 = 295,031.68/x
  3. Step 3: Cross multiply
    389,529.28x = 582,756.56 × 295,031.68
  4. Step 4: Simplify right side
    389,529.28x = 171,931,646,927.82
  5. Step 5: Solve for x
    x = 171,931,646,927.82/389,529.28
  6. Step 6: Final answer
    x = 441,383.11

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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.