Finding the Fourth Proportional to 1,207,492.21, 1,666,376.76 and 663,618.13
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Solution
The fourth proportional to 1,207,492.21, 1,666,376.76 and 663,618.13 is: 915,813.63
Step by Step Solution
- Step 1: Write the proportion equation
1,207,492.21 : 1,666,376.76 = 663,618.13 : x - Step 2: Convert to fraction form
1,207,492.21/1,666,376.76 = 663,618.13/x - Step 3: Cross multiply
1,207,492.21x = 1,666,376.76 × 663,618.13 - Step 4: Simplify right side
1,207,492.21x = 1,105,837,829,346.66 - Step 5: Solve for x
x = 1,105,837,829,346.66/1,207,492.21 - Step 6: Final answer
x = 915,813.63
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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.