Home / 1,313,912.12-1,970,864.93-316,640.12

Finding the Fourth Proportional to 1,313,912.12, 1,970,864.93 and 316,640.12

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Solution

The fourth proportional to 1,313,912.12, 1,970,864.93 and 316,640.12 is: 474,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,912.12 : 1,970,864.93 = 316,640.12 : x
  2. Step 2: Convert to fraction form
    1,313,912.12/1,970,864.93 = 316,640.12/x
  3. Step 3: Cross multiply
    1,313,912.12x = 1,970,864.93 × 316,640.12
  4. Step 4: Simplify right side
    1,313,912.12x = 624,054,898,876.27
  5. Step 5: Solve for x
    x = 624,054,898,876.27/1,313,912.12
  6. Step 6: Final answer
    x = 474,959.39

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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.