Home / 1,458,289.70-2,188,730.55-858,500.90

Finding the Fourth Proportional to 1,458,289.70, 2,188,730.55 and 858,500.90

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Solution

The fourth proportional to 1,458,289.70, 2,188,730.55 and 858,500.90 is: 1,288,514.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,289.70 : 2,188,730.55 = 858,500.90 : x
  2. Step 2: Convert to fraction form
    1,458,289.70/2,188,730.55 = 858,500.90/x
  3. Step 3: Cross multiply
    1,458,289.70x = 2,188,730.55 × 858,500.90
  4. Step 4: Simplify right side
    1,458,289.70x = 1,879,027,147,032.50
  5. Step 5: Solve for x
    x = 1,879,027,147,032.50/1,458,289.70
  6. Step 6: Final answer
    x = 1,288,514.31

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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.