Finding the Fourth Proportional to 1,078,672.14, 1,617,505.20 and 320,235.12
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Solution
The fourth proportional to 1,078,672.14, 1,617,505.20 and 320,235.12 is: 480,203.35
Step by Step Solution
- Step 1: Write the proportion equation
1,078,672.14 : 1,617,505.20 = 320,235.12 : x - Step 2: Convert to fraction form
1,078,672.14/1,617,505.20 = 320,235.12/x - Step 3: Cross multiply
1,078,672.14x = 1,617,505.20 × 320,235.12 - Step 4: Simplify right side
1,078,672.14x = 517,981,971,822.62 - Step 5: Solve for x
x = 517,981,971,822.62/1,078,672.14 - Step 6: Final answer
x = 480,203.35
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1.5x scale
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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.