Home / 1,405,221.58-2,107,890.69-407,949.58

Finding the Fourth Proportional to 1,405,221.58, 2,107,890.69 and 407,949.58

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Solution

The fourth proportional to 1,405,221.58, 2,107,890.69 and 407,949.58 is: 611,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,221.58 : 2,107,890.69 = 407,949.58 : x
  2. Step 2: Convert to fraction form
    1,405,221.58/2,107,890.69 = 407,949.58/x
  3. Step 3: Cross multiply
    1,405,221.58x = 2,107,890.69 × 407,949.58
  4. Step 4: Simplify right side
    1,405,221.58x = 859,913,121,671.41
  5. Step 5: Solve for x
    x = 859,913,121,671.41/1,405,221.58
  6. Step 6: Final answer
    x = 611,941.30

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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.