Finding the Fourth Proportional to 871,465.18, 1,202,622.64 and 489,492.26
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Solution
The fourth proportional to 871,465.18, 1,202,622.64 and 489,492.26 is: 675,499.71
Step by Step Solution
- Step 1: Write the proportion equation
871,465.18 : 1,202,622.64 = 489,492.26 : x - Step 2: Convert to fraction form
871,465.18/1,202,622.64 = 489,492.26/x - Step 3: Cross multiply
871,465.18x = 1,202,622.64 × 489,492.26 - Step 4: Simplify right side
871,465.18x = 588,674,473,980.77 - Step 5: Solve for x
x = 588,674,473,980.77/871,465.18 - Step 6: Final answer
x = 675,499.71
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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.