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Finding the Fourth Proportional to 490,001.40, 735,023.70 and 276,766.20

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Solution

The fourth proportional to 490,001.40, 735,023.70 and 276,766.20 is: 415,161.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,001.40 : 735,023.70 = 276,766.20 : x
  2. Step 2: Convert to fraction form
    490,001.40/735,023.70 = 276,766.20/x
  3. Step 3: Cross multiply
    490,001.40x = 735,023.70 × 276,766.20
  4. Step 4: Simplify right side
    490,001.40x = 203,429,716,358.94
  5. Step 5: Solve for x
    x = 203,429,716,358.94/490,001.40
  6. Step 6: Final answer
    x = 415,161.50

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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.