Finding the Fourth Proportional to 1,225,106.88, 1,691,060.40 and 838,153.68
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Solution
The fourth proportional to 1,225,106.88, 1,691,060.40 and 838,153.68 is: 1,156,934.57
Step by Step Solution
- Step 1: Write the proportion equation
1,225,106.88 : 1,691,060.40 = 838,153.68 : x - Step 2: Convert to fraction form
1,225,106.88/1,691,060.40 = 838,153.68/x - Step 3: Cross multiply
1,225,106.88x = 1,691,060.40 × 838,153.68 - Step 4: Simplify right side
1,225,106.88x = 1,417,368,497,362.27 - Step 5: Solve for x
x = 1,417,368,497,362.27/1,225,106.88 - Step 6: Final answer
x = 1,156,934.57
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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.