Home / 1,438,881.32-2,157,815.31-479,076.26

Finding the Fourth Proportional to 1,438,881.32, 2,157,815.31 and 479,076.26

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Solution

The fourth proportional to 1,438,881.32, 2,157,815.31 and 479,076.26 is: 718,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,881.32 : 2,157,815.31 = 479,076.26 : x
  2. Step 2: Convert to fraction form
    1,438,881.32/2,157,815.31 = 479,076.26/x
  3. Step 3: Cross multiply
    1,438,881.32x = 2,157,815.31 × 479,076.26
  4. Step 4: Simplify right side
    1,438,881.32x = 1,033,758,088,485.54
  5. Step 5: Solve for x
    x = 1,033,758,088,485.54/1,438,881.32
  6. Step 6: Final answer
    x = 718,445.69

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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.