Home / 1,418,954.60-2,128,431.90-520,097.60

Finding the Fourth Proportional to 1,418,954.60, 2,128,431.90 and 520,097.60

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Solution

The fourth proportional to 1,418,954.60, 2,128,431.90 and 520,097.60 is: 780,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,954.60 : 2,128,431.90 = 520,097.60 : x
  2. Step 2: Convert to fraction form
    1,418,954.60/2,128,431.90 = 520,097.60/x
  3. Step 3: Cross multiply
    1,418,954.60x = 2,128,431.90 × 520,097.60
  4. Step 4: Simplify right side
    1,418,954.60x = 1,106,992,322,953.44
  5. Step 5: Solve for x
    x = 1,106,992,322,953.44/1,418,954.60
  6. Step 6: Final answer
    x = 780,146.40

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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.