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Finding the Fourth Proportional to 490,230.20, 735,345.30 and 371,257.40

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Solution

The fourth proportional to 490,230.20, 735,345.30 and 371,257.40 is: 556,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,230.20 : 735,345.30 = 371,257.40 : x
  2. Step 2: Convert to fraction form
    490,230.20/735,345.30 = 371,257.40/x
  3. Step 3: Cross multiply
    490,230.20x = 735,345.30 × 371,257.40
  4. Step 4: Simplify right side
    490,230.20x = 273,002,384,180.22
  5. Step 5: Solve for x
    x = 273,002,384,180.22/490,230.20
  6. Step 6: Final answer
    x = 556,886.10

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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.