Home / 1,247,107.08-1,870,695.48-405,658.83

Finding the Fourth Proportional to 1,247,107.08, 1,870,695.48 and 405,658.83

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Solution

The fourth proportional to 1,247,107.08, 1,870,695.48 and 405,658.83 is: 608,499.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,107.08 : 1,870,695.48 = 405,658.83 : x
  2. Step 2: Convert to fraction form
    1,247,107.08/1,870,695.48 = 405,658.83/x
  3. Step 3: Cross multiply
    1,247,107.08x = 1,870,695.48 × 405,658.83
  4. Step 4: Simplify right side
    1,247,107.08x = 758,864,139,703.09
  5. Step 5: Solve for x
    x = 758,864,139,703.09/1,247,107.08
  6. Step 6: Final answer
    x = 608,499.58

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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.