Home / 1,442,909.70-1,991,184.56-789,533.19

Finding the Fourth Proportional to 1,442,909.70, 1,991,184.56 and 789,533.19

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Solution

The fourth proportional to 1,442,909.70, 1,991,184.56 and 789,533.19 is: 1,089,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,909.70 : 1,991,184.56 = 789,533.19 : x
  2. Step 2: Convert to fraction form
    1,442,909.70/1,991,184.56 = 789,533.19/x
  3. Step 3: Cross multiply
    1,442,909.70x = 1,991,184.56 × 789,533.19
  4. Step 4: Simplify right side
    1,442,909.70x = 1,572,106,296,548.63
  5. Step 5: Solve for x
    x = 1,572,106,296,548.63/1,442,909.70
  6. Step 6: Final answer
    x = 1,089,538.93

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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.