Finding the Fourth Proportional to 1,108,016.67, 1,529,184.50 and 642,972.99
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Solution
The fourth proportional to 1,108,016.67, 1,529,184.50 and 642,972.99 is: 887,373.23
Step by Step Solution
- Step 1: Write the proportion equation
1,108,016.67 : 1,529,184.50 = 642,972.99 : x - Step 2: Convert to fraction form
1,108,016.67/1,529,184.50 = 642,972.99/x - Step 3: Cross multiply
1,108,016.67x = 1,529,184.50 × 642,972.99 - Step 4: Simplify right side
1,108,016.67x = 983,224,330,226.66 - Step 5: Solve for x
x = 983,224,330,226.66/1,108,016.67 - Step 6: Final answer
x = 887,373.23
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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.