Home / 1,405,708.88-1,938,428.28-1,202,432.72

Finding the Fourth Proportional to 1,405,708.88, 1,938,428.28 and 1,202,432.72

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Solution

The fourth proportional to 1,405,708.88, 1,938,428.28 and 1,202,432.72 is: 1,658,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,708.88 : 1,938,428.28 = 1,202,432.72 : x
  2. Step 2: Convert to fraction form
    1,405,708.88/1,938,428.28 = 1,202,432.72/x
  3. Step 3: Cross multiply
    1,405,708.88x = 1,938,428.28 × 1,202,432.72
  4. Step 4: Simplify right side
    1,405,708.88x = 2,330,829,589,245.32
  5. Step 5: Solve for x
    x = 2,330,829,589,245.32/1,405,708.88
  6. Step 6: Final answer
    x = 1,658,116.86

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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.