Finding the Fourth Proportional to 818,971.59, 1,228,632.33 and 286,509.99
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Solution
The fourth proportional to 818,971.59, 1,228,632.33 and 286,509.99 is: 429,826.19
Step by Step Solution
- Step 1: Write the proportion equation
818,971.59 : 1,228,632.33 = 286,509.99 : x - Step 2: Convert to fraction form
818,971.59/1,228,632.33 = 286,509.99/x - Step 3: Cross multiply
818,971.59x = 1,228,632.33 × 286,509.99 - Step 4: Simplify right side
818,971.59x = 352,015,436,581.98 - Step 5: Solve for x
x = 352,015,436,581.98/818,971.59 - Step 6: Final answer
x = 429,826.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.