Finding the Fourth Proportional to 3,038,907.68, 4,193,802.24 and 1,680,790.40
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Solution
The fourth proportional to 3,038,907.68, 4,193,802.24 and 1,680,790.40 is: 2,319,551.39
Step by Step Solution
- Step 1: Write the proportion equation
3,038,907.68 : 4,193,802.24 = 1,680,790.40 : x - Step 2: Convert to fraction form
3,038,907.68/4,193,802.24 = 1,680,790.40/x - Step 3: Cross multiply
3,038,907.68x = 4,193,802.24 × 1,680,790.40 - Step 4: Simplify right side
3,038,907.68x = 7,048,902,544,490.50 - Step 5: Solve for x
x = 7,048,902,544,490.50/3,038,907.68 - Step 6: Final answer
x = 2,319,551.39
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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.