Home / 666,664.40-1,000,314.94-311,626.82

Finding the Fourth Proportional to 666,664.40, 1,000,314.94 and 311,626.82

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Solution

The fourth proportional to 666,664.40, 1,000,314.94 and 311,626.82 is: 467,589.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,664.40 : 1,000,314.94 = 311,626.82 : x
  2. Step 2: Convert to fraction form
    666,664.40/1,000,314.94 = 311,626.82/x
  3. Step 3: Cross multiply
    666,664.40x = 1,000,314.94 × 311,626.82
  4. Step 4: Simplify right side
    666,664.40x = 311,724,963,750.69
  5. Step 5: Solve for x
    x = 311,724,963,750.69/666,664.40
  6. Step 6: Final answer
    x = 467,589.04

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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.