Home / 1,438,329.64-2,158,819.62-728,860.36

Finding the Fourth Proportional to 1,438,329.64, 2,158,819.62 and 728,860.36

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Solution

The fourth proportional to 1,438,329.64, 2,158,819.62 and 728,860.36 is: 1,093,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,329.64 : 2,158,819.62 = 728,860.36 : x
  2. Step 2: Convert to fraction form
    1,438,329.64/2,158,819.62 = 728,860.36/x
  3. Step 3: Cross multiply
    1,438,329.64x = 2,158,819.62 × 728,860.36
  4. Step 4: Simplify right side
    1,438,329.64x = 1,573,478,045,408.26
  5. Step 5: Solve for x
    x = 1,573,478,045,408.26/1,438,329.64
  6. Step 6: Final answer
    x = 1,093,962.05

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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.