Finding the Fourth Proportional to 665,909.28, 996,308.10 and 381,736.08
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Solution
The fourth proportional to 665,909.28, 996,308.10 and 381,736.08 is: 571,138.98
Step by Step Solution
- Step 1: Write the proportion equation
665,909.28 : 996,308.10 = 381,736.08 : x - Step 2: Convert to fraction form
665,909.28/996,308.10 = 381,736.08/x - Step 3: Cross multiply
665,909.28x = 996,308.10 × 381,736.08 - Step 4: Simplify right side
665,909.28x = 380,326,748,566.25 - Step 5: Solve for x
x = 380,326,748,566.25/665,909.28 - Step 6: Final answer
x = 571,138.98
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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.