Home / 1,434,136.03-1,979,032.59-789,430.30

Finding the Fourth Proportional to 1,434,136.03, 1,979,032.59 and 789,430.30

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Solution

The fourth proportional to 1,434,136.03, 1,979,032.59 and 789,430.30 is: 1,089,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,136.03 : 1,979,032.59 = 789,430.30 : x
  2. Step 2: Convert to fraction form
    1,434,136.03/1,979,032.59 = 789,430.30/x
  3. Step 3: Cross multiply
    1,434,136.03x = 1,979,032.59 × 789,430.30
  4. Step 4: Simplify right side
    1,434,136.03x = 1,562,308,291,233.48
  5. Step 5: Solve for x
    x = 1,562,308,291,233.48/1,434,136.03
  6. Step 6: Final answer
    x = 1,089,372.46

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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.