Finding the Fourth Proportional to 1,316,176.76, 1,815,400.14 and 908,442.20
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Solution
The fourth proportional to 1,316,176.76, 1,815,400.14 and 908,442.20 is: 1,253,012.63
Step by Step Solution
- Step 1: Write the proportion equation
1,316,176.76 : 1,815,400.14 = 908,442.20 : x - Step 2: Convert to fraction form
1,316,176.76/1,815,400.14 = 908,442.20/x - Step 3: Cross multiply
1,316,176.76x = 1,815,400.14 × 908,442.20 - Step 4: Simplify right side
1,316,176.76x = 1,649,186,097,061.91 - Step 5: Solve for x
x = 1,649,186,097,061.91/1,316,176.76 - Step 6: Final answer
x = 1,253,012.63
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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.