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Finding the Fourth Proportional to 490,352.40, 735,528.60 and 190,846.80

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Solution

The fourth proportional to 490,352.40, 735,528.60 and 190,846.80 is: 286,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,352.40 : 735,528.60 = 190,846.80 : x
  2. Step 2: Convert to fraction form
    490,352.40/735,528.60 = 190,846.80/x
  3. Step 3: Cross multiply
    490,352.40x = 735,528.60 × 190,846.80
  4. Step 4: Simplify right side
    490,352.40x = 140,373,279,618.48
  5. Step 5: Solve for x
    x = 140,373,279,618.48/490,352.40
  6. Step 6: Final answer
    x = 286,270.20

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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.