Home / 1,405,893.76-2,109,051.84-408,492.16

Finding the Fourth Proportional to 1,405,893.76, 2,109,051.84 and 408,492.16

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Solution

The fourth proportional to 1,405,893.76, 2,109,051.84 and 408,492.16 is: 612,799.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,893.76 : 2,109,051.84 = 408,492.16 : x
  2. Step 2: Convert to fraction form
    1,405,893.76/2,109,051.84 = 408,492.16/x
  3. Step 3: Cross multiply
    1,405,893.76x = 2,109,051.84 × 408,492.16
  4. Step 4: Simplify right side
    1,405,893.76x = 861,531,141,673.57
  5. Step 5: Solve for x
    x = 861,531,141,673.57/1,405,893.76
  6. Step 6: Final answer
    x = 612,799.61

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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.