Home / 750,143.94-1,035,190.63-405,972.41

Finding the Fourth Proportional to 750,143.94, 1,035,190.63 and 405,972.41

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Solution

The fourth proportional to 750,143.94, 1,035,190.63 and 405,972.41 is: 560,237.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,143.94 : 1,035,190.63 = 405,972.41 : x
  2. Step 2: Convert to fraction form
    750,143.94/1,035,190.63 = 405,972.41/x
  3. Step 3: Cross multiply
    750,143.94x = 1,035,190.63 × 405,972.41
  4. Step 4: Simplify right side
    750,143.94x = 420,258,830,202.03
  5. Step 5: Solve for x
    x = 420,258,830,202.03/750,143.94
  6. Step 6: Final answer
    x = 560,237.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.