Home / 858,103.34-1,286,972.75-325,437.62

Finding the Fourth Proportional to 858,103.34, 1,286,972.75 and 325,437.62

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Solution

The fourth proportional to 858,103.34, 1,286,972.75 and 325,437.62 is: 488,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,103.34 : 1,286,972.75 = 325,437.62 : x
  2. Step 2: Convert to fraction form
    858,103.34/1,286,972.75 = 325,437.62/x
  3. Step 3: Cross multiply
    858,103.34x = 1,286,972.75 × 325,437.62
  4. Step 4: Simplify right side
    858,103.34x = 418,829,343,143.59
  5. Step 5: Solve for x
    x = 418,829,343,143.59/858,103.34
  6. Step 6: Final answer
    x = 488,087.30

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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.