Home / 1,620,788.32-2,431,183.56-422,707.60

Finding the Fourth Proportional to 1,620,788.32, 2,431,183.56 and 422,707.60

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Solution

The fourth proportional to 1,620,788.32, 2,431,183.56 and 422,707.60 is: 634,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,788.32 : 2,431,183.56 = 422,707.60 : x
  2. Step 2: Convert to fraction form
    1,620,788.32/2,431,183.56 = 422,707.60/x
  3. Step 3: Cross multiply
    1,620,788.32x = 2,431,183.56 × 422,707.60
  4. Step 4: Simplify right side
    1,620,788.32x = 1,027,679,767,807.06
  5. Step 5: Solve for x
    x = 1,027,679,767,807.06/1,620,788.32
  6. Step 6: Final answer
    x = 634,061.68

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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.