Home / 1,340,046.78-2,010,146.79-380,427.32

Finding the Fourth Proportional to 1,340,046.78, 2,010,146.79 and 380,427.32

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Solution

The fourth proportional to 1,340,046.78, 2,010,146.79 and 380,427.32 is: 570,662.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,046.78 : 2,010,146.79 = 380,427.32 : x
  2. Step 2: Convert to fraction form
    1,340,046.78/2,010,146.79 = 380,427.32/x
  3. Step 3: Cross multiply
    1,340,046.78x = 2,010,146.79 × 380,427.32
  4. Step 4: Simplify right side
    1,340,046.78x = 764,714,762,578.27
  5. Step 5: Solve for x
    x = 764,714,762,578.27/1,340,046.78
  6. Step 6: Final answer
    x = 570,662.74

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1.5x scale

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.