Home / 1,368,018.45-2,052,248.22-421,388.28

Finding the Fourth Proportional to 1,368,018.45, 2,052,248.22 and 421,388.28

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Solution

The fourth proportional to 1,368,018.45, 2,052,248.22 and 421,388.28 is: 632,150.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,018.45 : 2,052,248.22 = 421,388.28 : x
  2. Step 2: Convert to fraction form
    1,368,018.45/2,052,248.22 = 421,388.28/x
  3. Step 3: Cross multiply
    1,368,018.45x = 2,052,248.22 × 421,388.28
  4. Step 4: Simplify right side
    1,368,018.45x = 864,793,347,558.86
  5. Step 5: Solve for x
    x = 864,793,347,558.86/1,368,018.45
  6. Step 6: Final answer
    x = 632,150.35

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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.