Home / 859,813.29-1,289,723.04-260,779.64

Finding the Fourth Proportional to 859,813.29, 1,289,723.04 and 260,779.64

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Solution

The fourth proportional to 859,813.29, 1,289,723.04 and 260,779.64 is: 391,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,813.29 : 1,289,723.04 = 260,779.64 : x
  2. Step 2: Convert to fraction form
    859,813.29/1,289,723.04 = 260,779.64/x
  3. Step 3: Cross multiply
    859,813.29x = 1,289,723.04 × 260,779.64
  4. Step 4: Simplify right side
    859,813.29x = 336,333,503,622.29
  5. Step 5: Solve for x
    x = 336,333,503,622.29/859,813.29
  6. Step 6: Final answer
    x = 391,170.39

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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.