Home / 1,405,704.90-1,938,422.91-1,202,428.78

Finding the Fourth Proportional to 1,405,704.90, 1,938,422.91 and 1,202,428.78

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Solution

The fourth proportional to 1,405,704.90, 1,938,422.91 and 1,202,428.78 is: 1,658,111.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,704.90 : 1,938,422.91 = 1,202,428.78 : x
  2. Step 2: Convert to fraction form
    1,405,704.90/1,938,422.91 = 1,202,428.78/x
  3. Step 3: Cross multiply
    1,405,704.90x = 1,938,422.91 × 1,202,428.78
  4. Step 4: Simplify right side
    1,405,704.90x = 2,330,815,494,795.35
  5. Step 5: Solve for x
    x = 2,330,815,494,795.35/1,405,704.90
  6. Step 6: Final answer
    x = 1,658,111.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.