Finding the Fourth Proportional to 2,238,905.75, 3,089,655.65 and 1,258,845.65
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Solution
The fourth proportional to 2,238,905.75, 3,089,655.65 and 1,258,845.65 is: 1,737,187.71
Step by Step Solution
- Step 1: Write the proportion equation
2,238,905.75 : 3,089,655.65 = 1,258,845.65 : x - Step 2: Convert to fraction form
2,238,905.75/3,089,655.65 = 1,258,845.65/x - Step 3: Cross multiply
2,238,905.75x = 3,089,655.65 × 1,258,845.65 - Step 4: Simplify right side
2,238,905.75x = 3,889,399,562,699.26 - Step 5: Solve for x
x = 3,889,399,562,699.26/2,238,905.75 - Step 6: Final answer
x = 1,737,187.71
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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.