Finding the Fourth Proportional to 1,007,616.62, 1,390,447.92 and 554,907.62
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Solution
The fourth proportional to 1,007,616.62, 1,390,447.92 and 554,907.62 is: 765,737.81
Step by Step Solution
- Step 1: Write the proportion equation
1,007,616.62 : 1,390,447.92 = 554,907.62 : x - Step 2: Convert to fraction form
1,007,616.62/1,390,447.92 = 554,907.62/x - Step 3: Cross multiply
1,007,616.62x = 1,390,447.92 × 554,907.62 - Step 4: Simplify right side
1,007,616.62x = 771,570,146,021.15 - Step 5: Solve for x
x = 771,570,146,021.15/1,007,616.62 - Step 6: Final answer
x = 765,737.81
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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.