Finding the Fourth Proportional to 715,569.18, 987,074.30 and 446,830.62
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Solution
The fourth proportional to 715,569.18, 987,074.30 and 446,830.62 is: 616,369.51
Step by Step Solution
- Step 1: Write the proportion equation
715,569.18 : 987,074.30 = 446,830.62 : x - Step 2: Convert to fraction form
715,569.18/987,074.30 = 446,830.62/x - Step 3: Cross multiply
715,569.18x = 987,074.30 × 446,830.62 - Step 4: Simplify right side
715,569.18x = 441,055,021,455.07 - Step 5: Solve for x
x = 441,055,021,455.07/715,569.18 - Step 6: Final answer
x = 616,369.51
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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.