Finding the Fourth Proportional to 821,389.49, 1,133,521.44 and 458,828.63
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Solution
The fourth proportional to 821,389.49, 1,133,521.44 and 458,828.63 is: 633,185.71
Step by Step Solution
- Step 1: Write the proportion equation
821,389.49 : 1,133,521.44 = 458,828.63 : x - Step 2: Convert to fraction form
821,389.49/1,133,521.44 = 458,828.63/x - Step 3: Cross multiply
821,389.49x = 1,133,521.44 × 458,828.63 - Step 4: Simplify right side
821,389.49x = 520,092,092,224.63 - Step 5: Solve for x
x = 520,092,092,224.63/821,389.49 - Step 6: Final answer
x = 633,185.71
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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.