Home / 1,405,714.88-1,938,436.56-1,202,438.72

Finding the Fourth Proportional to 1,405,714.88, 1,938,436.56 and 1,202,438.72

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Solution

The fourth proportional to 1,405,714.88, 1,938,436.56 and 1,202,438.72 is: 1,658,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,714.88 : 1,938,436.56 = 1,202,438.72 : x
  2. Step 2: Convert to fraction form
    1,405,714.88/1,938,436.56 = 1,202,438.72/x
  3. Step 3: Cross multiply
    1,405,714.88x = 1,938,436.56 × 1,202,438.72
  4. Step 4: Simplify right side
    1,405,714.88x = 2,330,851,176,007.60
  5. Step 5: Solve for x
    x = 2,330,851,176,007.60/1,405,714.88
  6. Step 6: Final answer
    x = 1,658,125.14

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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.