Home / 785,880.16-1,179,277.64-330,438.41

Finding the Fourth Proportional to 785,880.16, 1,179,277.64 and 330,438.41

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Solution

The fourth proportional to 785,880.16, 1,179,277.64 and 330,438.41 is: 495,849.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,880.16 : 1,179,277.64 = 330,438.41 : x
  2. Step 2: Convert to fraction form
    785,880.16/1,179,277.64 = 330,438.41/x
  3. Step 3: Cross multiply
    785,880.16x = 1,179,277.64 × 330,438.41
  4. Step 4: Simplify right side
    785,880.16x = 389,678,628,310.15
  5. Step 5: Solve for x
    x = 389,678,628,310.15/785,880.16
  6. Step 6: Final answer
    x = 495,849.94

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1.5x scale

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.