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Finding the Fourth Proportional to 490,745.10, 736,124.92 and 323,337.54

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Solution

The fourth proportional to 490,745.10, 736,124.92 and 323,337.54 is: 485,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,745.10 : 736,124.92 = 323,337.54 : x
  2. Step 2: Convert to fraction form
    490,745.10/736,124.92 = 323,337.54/x
  3. Step 3: Cross multiply
    490,745.10x = 736,124.92 × 323,337.54
  4. Step 4: Simplify right side
    490,745.10x = 238,016,820,765.50
  5. Step 5: Solve for x
    x = 238,016,820,765.50/490,745.10
  6. Step 6: Final answer
    x = 485,011.10

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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.