Home / 1,188,943.25-1,783,612.91-390,010.28

Finding the Fourth Proportional to 1,188,943.25, 1,783,612.91 and 390,010.28

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Solution

The fourth proportional to 1,188,943.25, 1,783,612.91 and 390,010.28 is: 585,080.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,943.25 : 1,783,612.91 = 390,010.28 : x
  2. Step 2: Convert to fraction form
    1,188,943.25/1,783,612.91 = 390,010.28/x
  3. Step 3: Cross multiply
    1,188,943.25x = 1,783,612.91 × 390,010.28
  4. Step 4: Simplify right side
    1,188,943.25x = 695,627,362,497.68
  5. Step 5: Solve for x
    x = 695,627,362,497.68/1,188,943.25
  6. Step 6: Final answer
    x = 585,080.38

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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.