Finding the Fourth Proportional to 1,015,324.75, 1,401,116.42 and 556,430.98
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Solution
The fourth proportional to 1,015,324.75, 1,401,116.42 and 556,430.98 is: 767,857.36
Step by Step Solution
- Step 1: Write the proportion equation
1,015,324.75 : 1,401,116.42 = 556,430.98 : x - Step 2: Convert to fraction form
1,015,324.75/1,401,116.42 = 556,430.98/x - Step 3: Cross multiply
1,015,324.75x = 1,401,116.42 × 556,430.98 - Step 4: Simplify right side
1,015,324.75x = 779,624,582,674.69 - Step 5: Solve for x
x = 779,624,582,674.69/1,015,324.75 - Step 6: Final answer
x = 767,857.36
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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.