Home / 858,117.10-1,286,592.45-325,558.30

Finding the Fourth Proportional to 858,117.10, 1,286,592.45 and 325,558.30

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Solution

The fourth proportional to 858,117.10, 1,286,592.45 and 325,558.30 is: 488,116.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,117.10 : 1,286,592.45 = 325,558.30 : x
  2. Step 2: Convert to fraction form
    858,117.10/1,286,592.45 = 325,558.30/x
  3. Step 3: Cross multiply
    858,117.10x = 1,286,592.45 × 325,558.30
  4. Step 4: Simplify right side
    858,117.10x = 418,860,850,814.84
  5. Step 5: Solve for x
    x = 418,860,850,814.84/858,117.10
  6. Step 6: Final answer
    x = 488,116.19

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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.