Finding the Fourth Proportional to 874,701.17, 1,312,192.35 and 306,069.56
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Solution
The fourth proportional to 874,701.17, 1,312,192.35 and 306,069.56 is: 459,153.53
Step by Step Solution
- Step 1: Write the proportion equation
874,701.17 : 1,312,192.35 = 306,069.56 : x - Step 2: Convert to fraction form
874,701.17/1,312,192.35 = 306,069.56/x - Step 3: Cross multiply
874,701.17x = 1,312,192.35 × 306,069.56 - Step 4: Simplify right side
874,701.17x = 401,622,128,638.90 - Step 5: Solve for x
x = 401,622,128,638.90/874,701.17 - Step 6: Final answer
x = 459,153.53
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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.