Finding the Fourth Proportional to 380,786.08, 571,317.36 and 311,113.12
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Solution
The fourth proportional to 380,786.08, 571,317.36 and 311,113.12 is: 466,782.63
Step by Step Solution
- Step 1: Write the proportion equation
380,786.08 : 571,317.36 = 311,113.12 : x - Step 2: Convert to fraction form
380,786.08/571,317.36 = 311,113.12/x - Step 3: Cross multiply
380,786.08x = 571,317.36 × 311,113.12 - Step 4: Simplify right side
380,786.08x = 177,744,326,379.76 - Step 5: Solve for x
x = 177,744,326,379.76/380,786.08 - Step 6: Final answer
x = 466,782.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.