Home / 1,368,112-2,052,440.16-421,442.32

Finding the Fourth Proportional to 1,368,112, 2,052,440.16 and 421,442.32

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Solution

The fourth proportional to 1,368,112, 2,052,440.16 and 421,442.32 is: 632,247.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,112 : 2,052,440.16 = 421,442.32 : x
  2. Step 2: Convert to fraction form
    1,368,112/2,052,440.16 = 421,442.32/x
  3. Step 3: Cross multiply
    1,368,112x = 2,052,440.16 × 421,442.32
  4. Step 4: Simplify right side
    1,368,112x = 864,985,142,691.57
  5. Step 5: Solve for x
    x = 864,985,142,691.57/1,368,112
  6. Step 6: Final answer
    x = 632,247.32

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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.