Home / 1,238,270.85-1,857,590.82-439,485.50

Finding the Fourth Proportional to 1,238,270.85, 1,857,590.82 and 439,485.50

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Solution

The fourth proportional to 1,238,270.85, 1,857,590.82 and 439,485.50 is: 659,293.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,270.85 : 1,857,590.82 = 439,485.50 : x
  2. Step 2: Convert to fraction form
    1,238,270.85/1,857,590.82 = 439,485.50/x
  3. Step 3: Cross multiply
    1,238,270.85x = 1,857,590.82 × 439,485.50
  4. Step 4: Simplify right side
    1,238,270.85x = 816,384,228,001.12
  5. Step 5: Solve for x
    x = 816,384,228,001.12/1,238,270.85
  6. Step 6: Final answer
    x = 659,293.75

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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.