Home / 1,327,642.60-1,991,463.90-486,522.40

Finding the Fourth Proportional to 1,327,642.60, 1,991,463.90 and 486,522.40

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Solution

The fourth proportional to 1,327,642.60, 1,991,463.90 and 486,522.40 is: 729,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,642.60 : 1,991,463.90 = 486,522.40 : x
  2. Step 2: Convert to fraction form
    1,327,642.60/1,991,463.90 = 486,522.40/x
  3. Step 3: Cross multiply
    1,327,642.60x = 1,991,463.90 × 486,522.40
  4. Step 4: Simplify right side
    1,327,642.60x = 968,891,796,141.36
  5. Step 5: Solve for x
    x = 968,891,796,141.36/1,327,642.60
  6. Step 6: Final answer
    x = 729,783.60

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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.