Home / 1,430,664.20-2,146,328.68-419,745.32

Finding the Fourth Proportional to 1,430,664.20, 2,146,328.68 and 419,745.32

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Solution

The fourth proportional to 1,430,664.20, 2,146,328.68 and 419,745.32 is: 629,715.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,664.20 : 2,146,328.68 = 419,745.32 : x
  2. Step 2: Convert to fraction form
    1,430,664.20/2,146,328.68 = 419,745.32/x
  3. Step 3: Cross multiply
    1,430,664.20x = 2,146,328.68 × 419,745.32
  4. Step 4: Simplify right side
    1,430,664.20x = 900,911,418,611.78
  5. Step 5: Solve for x
    x = 900,911,418,611.78/1,430,664.20
  6. Step 6: Final answer
    x = 629,715.50

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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.