Finding the Fourth Proportional to 658,123.08, 908,212.68 and 356,317.08
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Solution
The fourth proportional to 658,123.08, 908,212.68 and 356,317.08 is: 491,719.10
Step by Step Solution
- Step 1: Write the proportion equation
658,123.08 : 908,212.68 = 356,317.08 : x - Step 2: Convert to fraction form
658,123.08/908,212.68 = 356,317.08/x - Step 3: Cross multiply
658,123.08x = 908,212.68 × 356,317.08 - Step 4: Simplify right side
658,123.08x = 323,611,690,156.57 - Step 5: Solve for x
x = 323,611,690,156.57/658,123.08 - Step 6: Final answer
x = 491,719.10
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1.5x scale
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.