Home / 862,922.40-1,294,570.44-330,443.45

Finding the Fourth Proportional to 862,922.40, 1,294,570.44 and 330,443.45

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Solution

The fourth proportional to 862,922.40, 1,294,570.44 and 330,443.45 is: 495,736.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,922.40 : 1,294,570.44 = 330,443.45 : x
  2. Step 2: Convert to fraction form
    862,922.40/1,294,570.44 = 330,443.45/x
  3. Step 3: Cross multiply
    862,922.40x = 1,294,570.44 × 330,443.45
  4. Step 4: Simplify right side
    862,922.40x = 427,782,320,843.41
  5. Step 5: Solve for x
    x = 427,782,320,843.41/862,922.40
  6. Step 6: Final answer
    x = 495,736.72

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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.