Finding the Fourth Proportional to 2,989,753.95, 4,125,994.60 and 1,683,455.21
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Solution
The fourth proportional to 2,989,753.95, 4,125,994.60 and 1,683,455.21 is: 2,323,243.72
Step by Step Solution
- Step 1: Write the proportion equation
2,989,753.95 : 4,125,994.60 = 1,683,455.21 : x - Step 2: Convert to fraction form
2,989,753.95/4,125,994.60 = 1,683,455.21/x - Step 3: Cross multiply
2,989,753.95x = 4,125,994.60 × 1,683,455.21 - Step 4: Simplify right side
2,989,753.95x = 6,945,927,085,171.89 - Step 5: Solve for x
x = 6,945,927,085,171.89/2,989,753.95 - Step 6: Final answer
x = 2,323,243.72
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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.