Finding the Fourth Proportional to 1,631,781.23, 2,252,135.51 and 943,871.31
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Solution
The fourth proportional to 1,631,781.23, 2,252,135.51 and 943,871.31 is: 1,302,702.87
Step by Step Solution
- Step 1: Write the proportion equation
1,631,781.23 : 2,252,135.51 = 943,871.31 : x - Step 2: Convert to fraction form
1,631,781.23/2,252,135.51 = 943,871.31/x - Step 3: Cross multiply
1,631,781.23x = 2,252,135.51 × 943,871.31 - Step 4: Simplify right side
1,631,781.23x = 2,125,726,092,941.38 - Step 5: Solve for x
x = 2,125,726,092,941.38/1,631,781.23 - Step 6: Final answer
x = 1,302,702.87
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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.