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Finding the Fourth Proportional to 559,944.54, 839,917.44 and 139,220.46

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Solution

The fourth proportional to 559,944.54, 839,917.44 and 139,220.46 is: 208,830.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,944.54 : 839,917.44 = 139,220.46 : x
  2. Step 2: Convert to fraction form
    559,944.54/839,917.44 = 139,220.46/x
  3. Step 3: Cross multiply
    559,944.54x = 839,917.44 × 139,220.46
  4. Step 4: Simplify right side
    559,944.54x = 116,933,692,358.82
  5. Step 5: Solve for x
    x = 116,933,692,358.82/559,944.54
  6. Step 6: Final answer
    x = 208,830.85

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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.