Finding the Fourth Proportional to 921,028.05, 1,381,855.77 and 561,917.84
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Solution
The fourth proportional to 921,028.05, 1,381,855.77 and 561,917.84 is: 843,068.14
Step by Step Solution
- Step 1: Write the proportion equation
921,028.05 : 1,381,855.77 = 561,917.84 : x - Step 2: Convert to fraction form
921,028.05/1,381,855.77 = 561,917.84/x - Step 3: Cross multiply
921,028.05x = 1,381,855.77 × 561,917.84 - Step 4: Simplify right side
921,028.05x = 776,489,402,560.66 - Step 5: Solve for x
x = 776,489,402,560.66/921,028.05 - Step 6: Final answer
x = 843,068.14
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.