Finding the Fourth Proportional to 917,251.20, 1,265,764.08 and 509,378.96
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Solution
The fourth proportional to 917,251.20, 1,265,764.08 and 509,378.96 is: 702,919.32
Step by Step Solution
- Step 1: Write the proportion equation
917,251.20 : 1,265,764.08 = 509,378.96 : x - Step 2: Convert to fraction form
917,251.20/1,265,764.08 = 509,378.96/x - Step 3: Cross multiply
917,251.20x = 1,265,764.08 × 509,378.96 - Step 4: Simplify right side
917,251.20x = 644,753,590,675.76 - Step 5: Solve for x
x = 644,753,590,675.76/917,251.20 - Step 6: Final answer
x = 702,919.32
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.