Home / 919,277.39-1,378,925.82-279,685.25

Finding the Fourth Proportional to 919,277.39, 1,378,925.82 and 279,685.25

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Solution

The fourth proportional to 919,277.39, 1,378,925.82 and 279,685.25 is: 419,530.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,277.39 : 1,378,925.82 = 279,685.25 : x
  2. Step 2: Convert to fraction form
    919,277.39/1,378,925.82 = 279,685.25/x
  3. Step 3: Cross multiply
    919,277.39x = 1,378,925.82 × 279,685.25
  4. Step 4: Simplify right side
    919,277.39x = 385,665,212,698.16
  5. Step 5: Solve for x
    x = 385,665,212,698.16/919,277.39
  6. Step 6: Final answer
    x = 419,530.84

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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.