Home / 1,313,909.87-1,970,861.56-316,637.87

Finding the Fourth Proportional to 1,313,909.87, 1,970,861.56 and 316,637.87

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Solution

The fourth proportional to 1,313,909.87, 1,970,861.56 and 316,637.87 is: 474,956.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,909.87 : 1,970,861.56 = 316,637.87 : x
  2. Step 2: Convert to fraction form
    1,313,909.87/1,970,861.56 = 316,637.87/x
  3. Step 3: Cross multiply
    1,313,909.87x = 1,970,861.56 × 316,637.87
  4. Step 4: Simplify right side
    1,313,909.87x = 624,049,395,777.38
  5. Step 5: Solve for x
    x = 624,049,395,777.38/1,313,909.87
  6. Step 6: Final answer
    x = 474,956.02

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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.