Finding the Fourth Proportional to 1,319,125.55, 1,820,375.40 and 738,348.53
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Solution
The fourth proportional to 1,319,125.55, 1,820,375.40 and 738,348.53 is: 1,018,910.97
Step by Step Solution
- Step 1: Write the proportion equation
1,319,125.55 : 1,820,375.40 = 738,348.53 : x - Step 2: Convert to fraction form
1,319,125.55/1,820,375.40 = 738,348.53/x - Step 3: Cross multiply
1,319,125.55x = 1,820,375.40 × 738,348.53 - Step 4: Simplify right side
1,319,125.55x = 1,344,071,491,536.28 - Step 5: Solve for x
x = 1,344,071,491,536.28/1,319,125.55 - Step 6: Final answer
x = 1,018,910.97
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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.