Home / 1,619,906.61-2,429,999.44-421,831.10

Finding the Fourth Proportional to 1,619,906.61, 2,429,999.44 and 421,831.10

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Solution

The fourth proportional to 1,619,906.61, 2,429,999.44 and 421,831.10 is: 632,782.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,906.61 : 2,429,999.44 = 421,831.10 : x
  2. Step 2: Convert to fraction form
    1,619,906.61/2,429,999.44 = 421,831.10/x
  3. Step 3: Cross multiply
    1,619,906.61x = 2,429,999.44 × 421,831.10
  4. Step 4: Simplify right side
    1,619,906.61x = 1,025,049,337,333.43
  5. Step 5: Solve for x
    x = 1,025,049,337,333.43/1,619,906.61
  6. Step 6: Final answer
    x = 632,782.99

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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.