Finding the Fourth Proportional to 1,211,805.24, 1,673,888.55 and 905,349.03
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Solution
The fourth proportional to 1,211,805.24, 1,673,888.55 and 905,349.03 is: 1,250,575.03
Step by Step Solution
- Step 1: Write the proportion equation
1,211,805.24 : 1,673,888.55 = 905,349.03 : x - Step 2: Convert to fraction form
1,211,805.24/1,673,888.55 = 905,349.03/x - Step 3: Cross multiply
1,211,805.24x = 1,673,888.55 × 905,349.03 - Step 4: Simplify right side
1,211,805.24x = 1,515,453,375,070.61 - Step 5: Solve for x
x = 1,515,453,375,070.61/1,211,805.24 - Step 6: Final answer
x = 1,250,575.03
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.