Finding the Fourth Proportional to 1,182,434.21, 1,631,759.15 and 638,569.95
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Solution
The fourth proportional to 1,182,434.21, 1,631,759.15 and 638,569.95 is: 881,226.50
Step by Step Solution
- Step 1: Write the proportion equation
1,182,434.21 : 1,631,759.15 = 638,569.95 : x - Step 2: Convert to fraction form
1,182,434.21/1,631,759.15 = 638,569.95/x - Step 3: Cross multiply
1,182,434.21x = 1,631,759.15 × 638,569.95 - Step 4: Simplify right side
1,182,434.21x = 1,041,992,358,827.54 - Step 5: Solve for x
x = 1,041,992,358,827.54/1,182,434.21 - Step 6: Final answer
x = 881,226.50
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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.