Home / 1,434,132.13-1,979,027.21-789,426.40

Finding the Fourth Proportional to 1,434,132.13, 1,979,027.21 and 789,426.40

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Solution

The fourth proportional to 1,434,132.13, 1,979,027.21 and 789,426.40 is: 1,089,367.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,132.13 : 1,979,027.21 = 789,426.40 : x
  2. Step 2: Convert to fraction form
    1,434,132.13/1,979,027.21 = 789,426.40/x
  3. Step 3: Cross multiply
    1,434,132.13x = 1,979,027.21 × 789,426.40
  4. Step 4: Simplify right side
    1,434,132.13x = 1,562,296,322,918.34
  5. Step 5: Solve for x
    x = 1,562,296,322,918.34/1,434,132.13
  6. Step 6: Final answer
    x = 1,089,367.08

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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.