Finding the Fourth Proportional to 2,810,805.84, 3,878,913.36 and 1,521,646.23
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Solution
The fourth proportional to 2,810,805.84, 3,878,913.36 and 1,521,646.23 is: 2,099,872.49
Step by Step Solution
- Step 1: Write the proportion equation
2,810,805.84 : 3,878,913.36 = 1,521,646.23 : x - Step 2: Convert to fraction form
2,810,805.84/3,878,913.36 = 1,521,646.23/x - Step 3: Cross multiply
2,810,805.84x = 3,878,913.36 × 1,521,646.23 - Step 4: Simplify right side
2,810,805.84x = 5,902,333,871,346.07 - Step 5: Solve for x
x = 5,902,333,871,346.07/2,810,805.84 - Step 6: Final answer
x = 2,099,872.49
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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.