Finding the Fourth Proportional to 1,891,211.24, 2,609,859.12 and 1,075,415.06
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Solution
The fourth proportional to 1,891,211.24, 2,609,859.12 and 1,075,415.06 is: 1,484,065.74
Step by Step Solution
- Step 1: Write the proportion equation
1,891,211.24 : 2,609,859.12 = 1,075,415.06 : x - Step 2: Convert to fraction form
1,891,211.24/2,609,859.12 = 1,075,415.06/x - Step 3: Cross multiply
1,891,211.24x = 2,609,859.12 × 1,075,415.06 - Step 4: Simplify right side
1,891,211.24x = 2,806,681,802,126.35 - Step 5: Solve for x
x = 2,806,681,802,126.35/1,891,211.24 - Step 6: Final answer
x = 1,484,065.74
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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.