Finding the Fourth Proportional to 920,862.68, 1,270,986.54 and 618,881.72
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Solution
The fourth proportional to 920,862.68, 1,270,986.54 and 618,881.72 is: 854,188.53
Step by Step Solution
- Step 1: Write the proportion equation
920,862.68 : 1,270,986.54 = 618,881.72 : x - Step 2: Convert to fraction form
920,862.68/1,270,986.54 = 618,881.72/x - Step 3: Cross multiply
920,862.68x = 1,270,986.54 × 618,881.72 - Step 4: Simplify right side
920,862.68x = 786,590,335,972.05 - Step 5: Solve for x
x = 786,590,335,972.05/920,862.68 - Step 6: Final answer
x = 854,188.53
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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.