Home / 1,368,268.40-2,052,627.24-421,639.28

Finding the Fourth Proportional to 1,368,268.40, 2,052,627.24 and 421,639.28

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Solution

The fourth proportional to 1,368,268.40, 2,052,627.24 and 421,639.28 is: 632,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,268.40 : 2,052,627.24 = 421,639.28 : x
  2. Step 2: Convert to fraction form
    1,368,268.40/2,052,627.24 = 421,639.28/x
  3. Step 3: Cross multiply
    1,368,268.40x = 2,052,627.24 × 421,639.28
  4. Step 4: Simplify right side
    1,368,268.40x = 865,468,271,581.99
  5. Step 5: Solve for x
    x = 865,468,271,581.99/1,368,268.40
  6. Step 6: Final answer
    x = 632,528.14

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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.