Home / 858,651.77-1,286,462.09-521,006.76

Finding the Fourth Proportional to 858,651.77, 1,286,462.09 and 521,006.76

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Solution

The fourth proportional to 858,651.77, 1,286,462.09 and 521,006.76 is: 780,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,651.77 : 1,286,462.09 = 521,006.76 : x
  2. Step 2: Convert to fraction form
    858,651.77/1,286,462.09 = 521,006.76/x
  3. Step 3: Cross multiply
    858,651.77x = 1,286,462.09 × 521,006.76
  4. Step 4: Simplify right side
    858,651.77x = 670,255,446,676.25
  5. Step 5: Solve for x
    x = 670,255,446,676.25/858,651.77
  6. Step 6: Final answer
    x = 780,590.54

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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.