Home / 1,238,730.67-1,858,280.68-439,945.12

Finding the Fourth Proportional to 1,238,730.67, 1,858,280.68 and 439,945.12

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Solution

The fourth proportional to 1,238,730.67, 1,858,280.68 and 439,945.12 is: 659,983.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,730.67 : 1,858,280.68 = 439,945.12 : x
  2. Step 2: Convert to fraction form
    1,238,730.67/1,858,280.68 = 439,945.12/x
  3. Step 3: Cross multiply
    1,238,730.67x = 1,858,280.68 × 439,945.12
  4. Step 4: Simplify right side
    1,238,730.67x = 817,541,507,464.88
  5. Step 5: Solve for x
    x = 817,541,507,464.88/1,238,730.67
  6. Step 6: Final answer
    x = 659,983.26

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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.