Finding the Fourth Proportional to 1,015,900.99, 1,402,006.35 and 563,191.99
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Solution
The fourth proportional to 1,015,900.99, 1,402,006.35 and 563,191.99 is: 777,239.86
Step by Step Solution
- Step 1: Write the proportion equation
1,015,900.99 : 1,402,006.35 = 563,191.99 : x - Step 2: Convert to fraction form
1,015,900.99/1,402,006.35 = 563,191.99/x - Step 3: Cross multiply
1,015,900.99x = 1,402,006.35 × 563,191.99 - Step 4: Simplify right side
1,015,900.99x = 789,598,746,428.87 - Step 5: Solve for x
x = 789,598,746,428.87/1,015,900.99 - Step 6: Final answer
x = 777,239.86
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1.5x scale
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.