Finding the Fourth Proportional to 2,306,830.72, 3,183,696.96 and 1,918,961.28
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Solution
The fourth proportional to 2,306,830.72, 3,183,696.96 and 1,918,961.28 is: 2,648,391.64
Step by Step Solution
- Step 1: Write the proportion equation
2,306,830.72 : 3,183,696.96 = 1,918,961.28 : x - Step 2: Convert to fraction form
2,306,830.72/3,183,696.96 = 1,918,961.28/x - Step 3: Cross multiply
2,306,830.72x = 3,183,696.96 × 1,918,961.28 - Step 4: Simplify right side
2,306,830.72x = 6,109,391,193,493.71 - Step 5: Solve for x
x = 6,109,391,193,493.71/2,306,830.72 - Step 6: Final answer
x = 2,648,391.64
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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.