Finding the Fourth Proportional to 1,405,893.42, 1,938,681.66 and 1,202,617.23
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Solution
The fourth proportional to 1,405,893.42, 1,938,681.66 and 1,202,617.23 is: 1,658,370.35
Step by Step Solution
- Step 1: Write the proportion equation
1,405,893.42 : 1,938,681.66 = 1,202,617.23 : x - Step 2: Convert to fraction form
1,405,893.42/1,938,681.66 = 1,202,617.23/x - Step 3: Cross multiply
1,405,893.42x = 1,938,681.66 × 1,202,617.23 - Step 4: Simplify right side
1,405,893.42x = 2,331,491,967,801.00 - Step 5: Solve for x
x = 2,331,491,967,801.00/1,405,893.42 - Step 6: Final answer
x = 1,658,370.35
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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.