Home / 856,605.75-1,284,911.52-216,909.19

Finding the Fourth Proportional to 856,605.75, 1,284,911.52 and 216,909.19

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Solution

The fourth proportional to 856,605.75, 1,284,911.52 and 216,909.19 is: 325,364.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,605.75 : 1,284,911.52 = 216,909.19 : x
  2. Step 2: Convert to fraction form
    856,605.75/1,284,911.52 = 216,909.19/x
  3. Step 3: Cross multiply
    856,605.75x = 1,284,911.52 × 216,909.19
  4. Step 4: Simplify right side
    856,605.75x = 278,709,110,600.31
  5. Step 5: Solve for x
    x = 278,709,110,600.31/856,605.75
  6. Step 6: Final answer
    x = 325,364.51

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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.