Home / 1,365,991.20-2,048,986.80-1,272,679.20

Finding the Fourth Proportional to 1,365,991.20, 2,048,986.80 and 1,272,679.20

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Solution

The fourth proportional to 1,365,991.20, 2,048,986.80 and 1,272,679.20 is: 1,909,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365,991.20 : 2,048,986.80 = 1,272,679.20 : x
  2. Step 2: Convert to fraction form
    1,365,991.20/2,048,986.80 = 1,272,679.20/x
  3. Step 3: Cross multiply
    1,365,991.20x = 2,048,986.80 × 1,272,679.20
  4. Step 4: Simplify right side
    1,365,991.20x = 2,607,702,881,434.56
  5. Step 5: Solve for x
    x = 2,607,702,881,434.56/1,365,991.20
  6. Step 6: Final answer
    x = 1,909,018.80

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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.