Home / 2,666,438.90-3,679,683.29-1,505,129.60

Finding the Fourth Proportional to 2,666,438.90, 3,679,683.29 and 1,505,129.60

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Solution

The fourth proportional to 2,666,438.90, 3,679,683.29 and 1,505,129.60 is: 2,077,077.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,438.90 : 3,679,683.29 = 1,505,129.60 : x
  2. Step 2: Convert to fraction form
    2,666,438.90/3,679,683.29 = 1,505,129.60/x
  3. Step 3: Cross multiply
    2,666,438.90x = 3,679,683.29 × 1,505,129.60
  4. Step 4: Simplify right side
    2,666,438.90x = 5,538,400,212,480.32
  5. Step 5: Solve for x
    x = 5,538,400,212,480.32/2,666,438.90
  6. Step 6: Final answer
    x = 2,077,077.49

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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.