Home / 856,454.40-1,284,379.20-295,358.40

Finding the Fourth Proportional to 856,454.40, 1,284,379.20 and 295,358.40

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Solution

The fourth proportional to 856,454.40, 1,284,379.20 and 295,358.40 is: 442,933.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,454.40 : 1,284,379.20 = 295,358.40 : x
  2. Step 2: Convert to fraction form
    856,454.40/1,284,379.20 = 295,358.40/x
  3. Step 3: Cross multiply
    856,454.40x = 1,284,379.20 × 295,358.40
  4. Step 4: Simplify right side
    856,454.40x = 379,352,185,505.28
  5. Step 5: Solve for x
    x = 379,352,185,505.28/856,454.40
  6. Step 6: Final answer
    x = 442,933.31

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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.