Finding the Fourth Proportional to 987,511.19, 1,362,876.27 and 557,818.99
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Solution
The fourth proportional to 987,511.19, 1,362,876.27 and 557,818.99 is: 769,852.81
Step by Step Solution
- Step 1: Write the proportion equation
987,511.19 : 1,362,876.27 = 557,818.99 : x - Step 2: Convert to fraction form
987,511.19/1,362,876.27 = 557,818.99/x - Step 3: Cross multiply
987,511.19x = 1,362,876.27 × 557,818.99 - Step 4: Simplify right side
987,511.19x = 760,238,264,038.14 - Step 5: Solve for x
x = 760,238,264,038.14/987,511.19 - Step 6: Final answer
x = 769,852.81
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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.