Finding the Fourth Proportional to 917,717.74, 1,266,467.07 and 515,324.14
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Solution
The fourth proportional to 917,717.74, 1,266,467.07 and 515,324.14 is: 711,156.63
Step by Step Solution
- Step 1: Write the proportion equation
917,717.74 : 1,266,467.07 = 515,324.14 : x - Step 2: Convert to fraction form
917,717.74/1,266,467.07 = 515,324.14/x - Step 3: Cross multiply
917,717.74x = 1,266,467.07 × 515,324.14 - Step 4: Simplify right side
917,717.74x = 652,641,053,686.07 - Step 5: Solve for x
x = 652,641,053,686.07/917,717.74 - Step 6: Final answer
x = 711,156.63
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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.