Finding the Fourth Proportional to 1,036,728.18, 1,555,092.27 and 438,364.98
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Solution
The fourth proportional to 1,036,728.18, 1,555,092.27 and 438,364.98 is: 657,547.47
Step by Step Solution
- Step 1: Write the proportion equation
1,036,728.18 : 1,555,092.27 = 438,364.98 : x - Step 2: Convert to fraction form
1,036,728.18/1,555,092.27 = 438,364.98/x - Step 3: Cross multiply
1,036,728.18x = 1,555,092.27 × 438,364.98 - Step 4: Simplify right side
1,036,728.18x = 681,697,991,836.71 - Step 5: Solve for x
x = 681,697,991,836.71/1,036,728.18 - Step 6: Final answer
x = 657,547.47
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Similar ratio
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1.5x scale
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.