Home / 1,322,216.40-1,983,324.60-435,637.20

Finding the Fourth Proportional to 1,322,216.40, 1,983,324.60 and 435,637.20

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Solution

The fourth proportional to 1,322,216.40, 1,983,324.60 and 435,637.20 is: 653,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,216.40 : 1,983,324.60 = 435,637.20 : x
  2. Step 2: Convert to fraction form
    1,322,216.40/1,983,324.60 = 435,637.20/x
  3. Step 3: Cross multiply
    1,322,216.40x = 1,983,324.60 × 435,637.20
  4. Step 4: Simplify right side
    1,322,216.40x = 864,009,975,435.12
  5. Step 5: Solve for x
    x = 864,009,975,435.12/1,322,216.40
  6. Step 6: Final answer
    x = 653,455.80

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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.