Home / 1,368,025.46-2,052,258.72-421,395.28

Finding the Fourth Proportional to 1,368,025.46, 2,052,258.72 and 421,395.28

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Solution

The fourth proportional to 1,368,025.46, 2,052,258.72 and 421,395.28 is: 632,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,025.46 : 2,052,258.72 = 421,395.28 : x
  2. Step 2: Convert to fraction form
    1,368,025.46/2,052,258.72 = 421,395.28/x
  3. Step 3: Cross multiply
    1,368,025.46x = 2,052,258.72 × 421,395.28
  4. Step 4: Simplify right side
    1,368,025.46x = 864,812,137,946.84
  5. Step 5: Solve for x
    x = 864,812,137,946.84/1,368,025.46
  6. Step 6: Final answer
    x = 632,160.85

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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.