Home / 1,314,999.60-1,972,499.40-717,128.48

Finding the Fourth Proportional to 1,314,999.60, 1,972,499.40 and 717,128.48

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Solution

The fourth proportional to 1,314,999.60, 1,972,499.40 and 717,128.48 is: 1,075,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,999.60 : 1,972,499.40 = 717,128.48 : x
  2. Step 2: Convert to fraction form
    1,314,999.60/1,972,499.40 = 717,128.48/x
  3. Step 3: Cross multiply
    1,314,999.60x = 1,972,499.40 × 717,128.48
  4. Step 4: Simplify right side
    1,314,999.60x = 1,414,535,486,660.41
  5. Step 5: Solve for x
    x = 1,414,535,486,660.41/1,314,999.60
  6. Step 6: Final answer
    x = 1,075,692.71

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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.