Finding the Fourth Proportional to 518,912.84, 716,071.92 and 292,543.76
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Solution
The fourth proportional to 518,912.84, 716,071.92 and 292,543.76 is: 403,694.72
Step by Step Solution
- Step 1: Write the proportion equation
518,912.84 : 716,071.92 = 292,543.76 : x - Step 2: Convert to fraction form
518,912.84/716,071.92 = 292,543.76/x - Step 3: Cross multiply
518,912.84x = 716,071.92 × 292,543.76 - Step 4: Simplify right side
518,912.84x = 209,482,371,907.22 - Step 5: Solve for x
x = 209,482,371,907.22/518,912.84 - Step 6: Final answer
x = 403,694.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.