Finding the Fourth Proportional to 1,019,790.18, 1,407,420.66 and 637,939.98
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Solution
The fourth proportional to 1,019,790.18, 1,407,420.66 and 637,939.98 is: 880,426.12
Step by Step Solution
- Step 1: Write the proportion equation
1,019,790.18 : 1,407,420.66 = 637,939.98 : x - Step 2: Convert to fraction form
1,019,790.18/1,407,420.66 = 637,939.98/x - Step 3: Cross multiply
1,019,790.18x = 1,407,420.66 × 637,939.98 - Step 4: Simplify right side
1,019,790.18x = 897,849,907,691.99 - Step 5: Solve for x
x = 897,849,907,691.99/1,019,790.18 - Step 6: Final answer
x = 880,426.12
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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.