Home / 1,621,143.32-2,431,756.67-768,015.14

Finding the Fourth Proportional to 1,621,143.32, 2,431,756.67 and 768,015.14

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Solution

The fourth proportional to 1,621,143.32, 2,431,756.67 and 768,015.14 is: 1,152,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,143.32 : 2,431,756.67 = 768,015.14 : x
  2. Step 2: Convert to fraction form
    1,621,143.32/2,431,756.67 = 768,015.14/x
  3. Step 3: Cross multiply
    1,621,143.32x = 2,431,756.67 × 768,015.14
  4. Step 4: Simplify right side
    1,621,143.32x = 1,867,625,923,357.12
  5. Step 5: Solve for x
    x = 1,867,625,923,357.12/1,621,143.32
  6. Step 6: Final answer
    x = 1,152,042.45

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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.