Finding the Fourth Proportional to 2,781,072.70, 3,838,121.80 and 1,557,356.00
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Solution
The fourth proportional to 2,781,072.70, 3,838,121.80 and 1,557,356.00 is: 2,149,286.50
Step by Step Solution
- Step 1: Write the proportion equation
2,781,072.70 : 3,838,121.80 = 1,557,356.00 : x - Step 2: Convert to fraction form
2,781,072.70/3,838,121.80 = 1,557,356.00/x - Step 3: Cross multiply
2,781,072.70x = 3,838,121.80 × 1,557,356.00 - Step 4: Simplify right side
2,781,072.70x = 5,977,321,990,876.80 - Step 5: Solve for x
x = 5,977,321,990,876.80/2,781,072.70 - Step 6: Final answer
x = 2,149,286.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.