Home / 559,914.70-839,875.20-139,190.58

Finding the Fourth Proportional to 559,914.70, 839,875.20 and 139,190.58

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Solution

The fourth proportional to 559,914.70, 839,875.20 and 139,190.58 is: 208,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,914.70 : 839,875.20 = 139,190.58 : x
  2. Step 2: Convert to fraction form
    559,914.70/839,875.20 = 139,190.58/x
  3. Step 3: Cross multiply
    559,914.70x = 839,875.20 × 139,190.58
  4. Step 4: Simplify right side
    559,914.70x = 116,902,716,215.62
  5. Step 5: Solve for x
    x = 116,902,716,215.62/559,914.70
  6. Step 6: Final answer
    x = 208,786.65

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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.