Home / 750,812.83-1,036,138.44-428,516.46

Finding the Fourth Proportional to 750,812.83, 1,036,138.44 and 428,516.46

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Solution

The fourth proportional to 750,812.83, 1,036,138.44 and 428,516.46 is: 591,362.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,812.83 : 1,036,138.44 = 428,516.46 : x
  2. Step 2: Convert to fraction form
    750,812.83/1,036,138.44 = 428,516.46/x
  3. Step 3: Cross multiply
    750,812.83x = 1,036,138.44 × 428,516.46
  4. Step 4: Simplify right side
    750,812.83x = 444,002,376,378.72
  5. Step 5: Solve for x
    x = 444,002,376,378.72/750,812.83
  6. Step 6: Final answer
    x = 591,362.27

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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.