Finding the Fourth Proportional to 830,663.51, 1,146,316.05 and 448,690.19
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Solution
The fourth proportional to 830,663.51, 1,146,316.05 and 448,690.19 is: 619,192.68
Step by Step Solution
- Step 1: Write the proportion equation
830,663.51 : 1,146,316.05 = 448,690.19 : x - Step 2: Convert to fraction form
830,663.51/1,146,316.05 = 448,690.19/x - Step 3: Cross multiply
830,663.51x = 1,146,316.05 × 448,690.19 - Step 4: Simplify right side
830,663.51x = 514,340,760,542.97 - Step 5: Solve for x
x = 514,340,760,542.97/830,663.51 - Step 6: Final answer
x = 619,192.68
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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.