Home / 890,895.40-1,336,200.90-259,661.56

Finding the Fourth Proportional to 890,895.40, 1,336,200.90 and 259,661.56

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Solution

The fourth proportional to 890,895.40, 1,336,200.90 and 259,661.56 is: 389,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,895.40 : 1,336,200.90 = 259,661.56 : x
  2. Step 2: Convert to fraction form
    890,895.40/1,336,200.90 = 259,661.56/x
  3. Step 3: Cross multiply
    890,895.40x = 1,336,200.90 × 259,661.56
  4. Step 4: Simplify right side
    890,895.40x = 346,960,010,167.40
  5. Step 5: Solve for x
    x = 346,960,010,167.40/890,895.40
  6. Step 6: Final answer
    x = 389,450.89

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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.