Home / 858,011.10-1,286,627.85-325,355.10

Finding the Fourth Proportional to 858,011.10, 1,286,627.85 and 325,355.10

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Solution

The fourth proportional to 858,011.10, 1,286,627.85 and 325,355.10 is: 487,885.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,011.10 : 1,286,627.85 = 325,355.10 : x
  2. Step 2: Convert to fraction form
    858,011.10/1,286,627.85 = 325,355.10/x
  3. Step 3: Cross multiply
    858,011.10x = 1,286,627.85 × 325,355.10
  4. Step 4: Simplify right side
    858,011.10x = 418,610,932,799.54
  5. Step 5: Solve for x
    x = 418,610,932,799.54/858,011.10
  6. Step 6: Final answer
    x = 487,885.22

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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.