Home / 1,378,735.72-2,068,159.21-480,268.33

Finding the Fourth Proportional to 1,378,735.72, 2,068,159.21 and 480,268.33

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Solution

The fourth proportional to 1,378,735.72, 2,068,159.21 and 480,268.33 is: 720,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,735.72 : 2,068,159.21 = 480,268.33 : x
  2. Step 2: Convert to fraction form
    1,378,735.72/2,068,159.21 = 480,268.33/x
  3. Step 3: Cross multiply
    1,378,735.72x = 2,068,159.21 × 480,268.33
  4. Step 4: Simplify right side
    1,378,735.72x = 993,271,369,960.82
  5. Step 5: Solve for x
    x = 993,271,369,960.82/1,378,735.72
  6. Step 6: Final answer
    x = 720,421.87

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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.