Home / 1,399,978.03-2,099,967.07-800,518.72

Finding the Fourth Proportional to 1,399,978.03, 2,099,967.07 and 800,518.72

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Solution

The fourth proportional to 1,399,978.03, 2,099,967.07 and 800,518.72 is: 1,200,778.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,978.03 : 2,099,967.07 = 800,518.72 : x
  2. Step 2: Convert to fraction form
    1,399,978.03/2,099,967.07 = 800,518.72/x
  3. Step 3: Cross multiply
    1,399,978.03x = 2,099,967.07 × 800,518.72
  4. Step 4: Simplify right side
    1,399,978.03x = 1,681,062,938,417.42
  5. Step 5: Solve for x
    x = 1,681,062,938,417.42/1,399,978.03
  6. Step 6: Final answer
    x = 1,200,778.08

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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.