Home / 1,742,742.90-2,611,887.62-1,405,942.38

Finding the Fourth Proportional to 1,742,742.90, 2,611,887.62 and 1,405,942.38

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Solution

The fourth proportional to 1,742,742.90, 2,611,887.62 and 1,405,942.38 is: 2,107,117.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742,742.90 : 2,611,887.62 = 1,405,942.38 : x
  2. Step 2: Convert to fraction form
    1,742,742.90/2,611,887.62 = 1,405,942.38/x
  3. Step 3: Cross multiply
    1,742,742.90x = 2,611,887.62 × 1,405,942.38
  4. Step 4: Simplify right side
    1,742,742.90x = 3,672,163,489,725.62
  5. Step 5: Solve for x
    x = 3,672,163,489,725.62/1,742,742.90
  6. Step 6: Final answer
    x = 2,107,117.17

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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.