Finding the Fourth Proportional to 658,069.68, 908,129.16 and 371,572.80
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Solution
The fourth proportional to 658,069.68, 908,129.16 and 371,572.80 is: 512,766.51
Step by Step Solution
- Step 1: Write the proportion equation
658,069.68 : 908,129.16 = 371,572.80 : x - Step 2: Convert to fraction form
658,069.68/908,129.16 = 371,572.80/x - Step 3: Cross multiply
658,069.68x = 908,129.16 × 371,572.80 - Step 4: Simplify right side
658,069.68x = 337,436,094,742.85 - Step 5: Solve for x
x = 337,436,094,742.85/658,069.68 - Step 6: Final answer
x = 512,766.51
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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.