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Finding the Fourth Proportional to 490,640.80, 734,924.40 and 490,640.80

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Solution

The fourth proportional to 490,640.80, 734,924.40 and 490,640.80 is: 734,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,640.80 : 734,924.40 = 490,640.80 : x
  2. Step 2: Convert to fraction form
    490,640.80/734,924.40 = 490,640.80/x
  3. Step 3: Cross multiply
    490,640.80x = 734,924.40 × 490,640.80
  4. Step 4: Simplify right side
    490,640.80x = 360,583,895,555.52
  5. Step 5: Solve for x
    x = 360,583,895,555.52/490,640.80
  6. Step 6: Final answer
    x = 734,924.40

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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.