Home / 858,101.46-1,286,969.94-325,435.74

Finding the Fourth Proportional to 858,101.46, 1,286,969.94 and 325,435.74

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Solution

The fourth proportional to 858,101.46, 1,286,969.94 and 325,435.74 is: 488,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,101.46 : 1,286,969.94 = 325,435.74 : x
  2. Step 2: Convert to fraction form
    858,101.46/1,286,969.94 = 325,435.74/x
  3. Step 3: Cross multiply
    858,101.46x = 1,286,969.94 × 325,435.74
  4. Step 4: Simplify right side
    858,101.46x = 418,826,014,781.66
  5. Step 5: Solve for x
    x = 418,826,014,781.66/858,101.46
  6. Step 6: Final answer
    x = 488,084.49

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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.