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Finding the Fourth Proportional to 490,130.60, 734,904.30 and 253,934.60

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Solution

The fourth proportional to 490,130.60, 734,904.30 and 253,934.60 is: 380,750.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,130.60 : 734,904.30 = 253,934.60 : x
  2. Step 2: Convert to fraction form
    490,130.60/734,904.30 = 253,934.60/x
  3. Step 3: Cross multiply
    490,130.60x = 734,904.30 × 253,934.60
  4. Step 4: Simplify right side
    490,130.60x = 186,617,629,458.78
  5. Step 5: Solve for x
    x = 186,617,629,458.78/490,130.60
  6. Step 6: Final answer
    x = 380,750.82

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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.