Finding the Fourth Proportional to 715,968.36, 988,186.68 and 454,154.31
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Solution
The fourth proportional to 715,968.36, 988,186.68 and 454,154.31 is: 626,828.31
Step by Step Solution
- Step 1: Write the proportion equation
715,968.36 : 988,186.68 = 454,154.31 : x - Step 2: Convert to fraction form
715,968.36/988,186.68 = 454,154.31/x - Step 3: Cross multiply
715,968.36x = 988,186.68 × 454,154.31 - Step 4: Simplify right side
715,968.36x = 448,789,239,806.59 - Step 5: Solve for x
x = 448,789,239,806.59/715,968.36 - Step 6: Final answer
x = 626,828.31
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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.