Finding the Fourth Proportional to 2,781,343.99, 3,838,072.01 and 1,557,368.94
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Solution
The fourth proportional to 2,781,343.99, 3,838,072.01 and 1,557,368.94 is: 2,149,066.84
Step by Step Solution
- Step 1: Write the proportion equation
2,781,343.99 : 3,838,072.01 = 1,557,368.94 : x - Step 2: Convert to fraction form
2,781,343.99/3,838,072.01 = 1,557,368.94/x - Step 3: Cross multiply
2,781,343.99x = 3,838,072.01 × 1,557,368.94 - Step 4: Simplify right side
2,781,343.99x = 5,977,294,144,463.30 - Step 5: Solve for x
x = 5,977,294,144,463.30/2,781,343.99 - Step 6: Final answer
x = 2,149,066.84
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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.