Home / 1,313,914.37-1,970,868.31-316,642.37

Finding the Fourth Proportional to 1,313,914.37, 1,970,868.31 and 316,642.37

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Solution

The fourth proportional to 1,313,914.37, 1,970,868.31 and 316,642.37 is: 474,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,914.37 : 1,970,868.31 = 316,642.37 : x
  2. Step 2: Convert to fraction form
    1,313,914.37/1,970,868.31 = 316,642.37/x
  3. Step 3: Cross multiply
    1,313,914.37x = 1,970,868.31 × 316,642.37
  4. Step 4: Simplify right side
    1,313,914.37x = 624,060,401,990.35
  5. Step 5: Solve for x
    x = 624,060,401,990.35/1,313,914.37
  6. Step 6: Final answer
    x = 474,962.77

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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.