Finding the Fourth Proportional to 1,891,215.99, 2,609,865.68 and 1,075,419.81
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Solution
The fourth proportional to 1,891,215.99, 2,609,865.68 and 1,075,419.81 is: 1,484,072.29
Step by Step Solution
- Step 1: Write the proportion equation
1,891,215.99 : 2,609,865.68 = 1,075,419.81 : x - Step 2: Convert to fraction form
1,891,215.99/2,609,865.68 = 1,075,419.81/x - Step 3: Cross multiply
1,891,215.99x = 2,609,865.68 × 1,075,419.81 - Step 4: Simplify right side
1,891,215.99x = 2,806,701,248,334.02 - Step 5: Solve for x
x = 2,806,701,248,334.02/1,891,215.99 - Step 6: Final answer
x = 1,484,072.29
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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.