Home / 1,123,663.82-1,683,720.60-912,268.40

Finding the Fourth Proportional to 1,123,663.82, 1,683,720.60 and 912,268.40

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Solution

The fourth proportional to 1,123,663.82, 1,683,720.60 and 912,268.40 is: 1,366,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,663.82 : 1,683,720.60 = 912,268.40 : x
  2. Step 2: Convert to fraction form
    1,123,663.82/1,683,720.60 = 912,268.40/x
  3. Step 3: Cross multiply
    1,123,663.82x = 1,683,720.60 × 912,268.40
  4. Step 4: Simplify right side
    1,123,663.82x = 1,536,005,089,390.44
  5. Step 5: Solve for x
    x = 1,536,005,089,390.44/1,123,663.82
  6. Step 6: Final answer
    x = 1,366,961.42

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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.