Home / 1,430,633.68-2,146,282.64-419,714.80

Finding the Fourth Proportional to 1,430,633.68, 2,146,282.64 and 419,714.80

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Solution

The fourth proportional to 1,430,633.68, 2,146,282.64 and 419,714.80 is: 629,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,633.68 : 2,146,282.64 = 419,714.80 : x
  2. Step 2: Convert to fraction form
    1,430,633.68/2,146,282.64 = 419,714.80/x
  3. Step 3: Cross multiply
    1,430,633.68x = 2,146,282.64 × 419,714.80
  4. Step 4: Simplify right side
    1,430,633.68x = 900,826,588,991.07
  5. Step 5: Solve for x
    x = 900,826,588,991.07/1,430,633.68
  6. Step 6: Final answer
    x = 629,669.64

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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.