Home / 856,455.90-1,284,381.45-295,359.90

Finding the Fourth Proportional to 856,455.90, 1,284,381.45 and 295,359.90

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Solution

The fourth proportional to 856,455.90, 1,284,381.45 and 295,359.90 is: 442,935.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,455.90 : 1,284,381.45 = 295,359.90 : x
  2. Step 2: Convert to fraction form
    856,455.90/1,284,381.45 = 295,359.90/x
  3. Step 3: Cross multiply
    856,455.90x = 1,284,381.45 × 295,359.90
  4. Step 4: Simplify right side
    856,455.90x = 379,354,776,633.86
  5. Step 5: Solve for x
    x = 379,354,776,633.86/856,455.90
  6. Step 6: Final answer
    x = 442,935.56

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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.