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Finding the Fourth Proportional to 490,003.40, 735,026.70 and 276,768.20

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Solution

The fourth proportional to 490,003.40, 735,026.70 and 276,768.20 is: 415,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,003.40 : 735,026.70 = 276,768.20 : x
  2. Step 2: Convert to fraction form
    490,003.40/735,026.70 = 276,768.20/x
  3. Step 3: Cross multiply
    490,003.40x = 735,026.70 × 276,768.20
  4. Step 4: Simplify right side
    490,003.40x = 203,432,016,710.94
  5. Step 5: Solve for x
    x = 203,432,016,710.94/490,003.40
  6. Step 6: Final answer
    x = 415,164.50

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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.