Finding the Fourth Proportional to 1,916,770.84, 2,645,993.94 and 1,238,038.36
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Solution
The fourth proportional to 1,916,770.84, 2,645,993.94 and 1,238,038.36 is: 1,709,042.07
Step by Step Solution
- Step 1: Write the proportion equation
1,916,770.84 : 2,645,993.94 = 1,238,038.36 : x - Step 2: Convert to fraction form
1,916,770.84/2,645,993.94 = 1,238,038.36/x - Step 3: Cross multiply
1,916,770.84x = 2,645,993.94 × 1,238,038.36 - Step 4: Simplify right side
1,916,770.84x = 3,275,841,998,047.54 - Step 5: Solve for x
x = 3,275,841,998,047.54/1,916,770.84 - Step 6: Final answer
x = 1,709,042.07
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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.