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Finding the Fourth Proportional to 650,247.99, 897,042.83 and 420,878.96

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Solution

The fourth proportional to 650,247.99, 897,042.83 and 420,878.96 is: 580,619.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,247.99 : 897,042.83 = 420,878.96 : x
  2. Step 2: Convert to fraction form
    650,247.99/897,042.83 = 420,878.96/x
  3. Step 3: Cross multiply
    650,247.99x = 897,042.83 × 420,878.96
  4. Step 4: Simplify right side
    650,247.99x = 377,546,447,692.69
  5. Step 5: Solve for x
    x = 377,546,447,692.69/650,247.99
  6. Step 6: Final answer
    x = 580,619.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.