Home / 1,188,943.88-1,783,041.19-390,039.26

Finding the Fourth Proportional to 1,188,943.88, 1,783,041.19 and 390,039.26

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Solution

The fourth proportional to 1,188,943.88, 1,783,041.19 and 390,039.26 is: 584,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,943.88 : 1,783,041.19 = 390,039.26 : x
  2. Step 2: Convert to fraction form
    1,188,943.88/1,783,041.19 = 390,039.26/x
  3. Step 3: Cross multiply
    1,188,943.88x = 1,783,041.19 × 390,039.26
  4. Step 4: Simplify right side
    1,188,943.88x = 695,456,056,406.82
  5. Step 5: Solve for x
    x = 695,456,056,406.82/1,188,943.88
  6. Step 6: Final answer
    x = 584,935.98

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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.