Home / 1,313,940.64-1,970,893.68-316,660

Finding the Fourth Proportional to 1,313,940.64, 1,970,893.68 and 316,660

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Solution

The fourth proportional to 1,313,940.64, 1,970,893.68 and 316,660 is: 474,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,940.64 : 1,970,893.68 = 316,660 : x
  2. Step 2: Convert to fraction form
    1,313,940.64/1,970,893.68 = 316,660/x
  3. Step 3: Cross multiply
    1,313,940.64x = 1,970,893.68 × 316,660
  4. Step 4: Simplify right side
    1,313,940.64x = 624,103,192,708.80
  5. Step 5: Solve for x
    x = 624,103,192,708.80/1,313,940.64
  6. Step 6: Final answer
    x = 474,985.84

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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.