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Finding the Fourth Proportional to 490,672.35, 736,008.53 and 384,384.15

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Solution

The fourth proportional to 490,672.35, 736,008.53 and 384,384.15 is: 576,576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,672.35 : 736,008.53 = 384,384.15 : x
  2. Step 2: Convert to fraction form
    490,672.35/736,008.53 = 384,384.15/x
  3. Step 3: Cross multiply
    490,672.35x = 736,008.53 × 384,384.15
  4. Step 4: Simplify right side
    490,672.35x = 282,910,011,274.88
  5. Step 5: Solve for x
    x = 282,910,011,274.88/490,672.35
  6. Step 6: Final answer
    x = 576,576.23

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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.