Home / 785,322.77-1,178,043.83-305,344.36

Finding the Fourth Proportional to 785,322.77, 1,178,043.83 and 305,344.36

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Solution

The fourth proportional to 785,322.77, 1,178,043.83 and 305,344.36 is: 458,039.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,322.77 : 1,178,043.83 = 305,344.36 : x
  2. Step 2: Convert to fraction form
    785,322.77/1,178,043.83 = 305,344.36/x
  3. Step 3: Cross multiply
    785,322.77x = 1,178,043.83 × 305,344.36
  4. Step 4: Simplify right side
    785,322.77x = 359,709,031,906.36
  5. Step 5: Solve for x
    x = 359,709,031,906.36/785,322.77
  6. Step 6: Final answer
    x = 458,039.73

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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.