Home / 1,434,133.16-1,979,028.63-789,427.43

Finding the Fourth Proportional to 1,434,133.16, 1,979,028.63 and 789,427.43

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Solution

The fourth proportional to 1,434,133.16, 1,979,028.63 and 789,427.43 is: 1,089,368.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,133.16 : 1,979,028.63 = 789,427.43 : x
  2. Step 2: Convert to fraction form
    1,434,133.16/1,979,028.63 = 789,427.43/x
  3. Step 3: Cross multiply
    1,434,133.16x = 1,979,028.63 × 789,427.43
  4. Step 4: Simplify right side
    1,434,133.16x = 1,562,299,490,224.89
  5. Step 5: Solve for x
    x = 1,562,299,490,224.89/1,434,133.16
  6. Step 6: Final answer
    x = 1,089,368.50

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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.