Finding the Fourth Proportional to 4,989,590.88, 7,485,309.44 and 1,578,736.12
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Solution
The fourth proportional to 4,989,590.88, 7,485,309.44 and 1,578,736.12 is: 2,368,396.26
Step by Step Solution
- Step 1: Write the proportion equation
4,989,590.88 : 7,485,309.44 = 1,578,736.12 : x - Step 2: Convert to fraction form
4,989,590.88/7,485,309.44 = 1,578,736.12/x - Step 3: Cross multiply
4,989,590.88x = 7,485,309.44 × 1,578,736.12 - Step 4: Simplify right side
4,989,590.88x = 11,817,328,382,304.97 - Step 5: Solve for x
x = 11,817,328,382,304.97/4,989,590.88 - Step 6: Final answer
x = 2,368,396.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.