Home / 687,365.53-1,030,743.83-367,439.90

Finding the Fourth Proportional to 687,365.53, 1,030,743.83 and 367,439.90

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Solution

The fourth proportional to 687,365.53, 1,030,743.83 and 367,439.90 is: 550,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,365.53 : 1,030,743.83 = 367,439.90 : x
  2. Step 2: Convert to fraction form
    687,365.53/1,030,743.83 = 367,439.90/x
  3. Step 3: Cross multiply
    687,365.53x = 1,030,743.83 × 367,439.90
  4. Step 4: Simplify right side
    687,365.53x = 378,736,409,820.82
  5. Step 5: Solve for x
    x = 378,736,409,820.82/687,365.53
  6. Step 6: Final answer
    x = 550,997.09

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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.