Finding the Fourth Proportional to 912,356.48, 1,368,067.44 and 486,135.20
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Solution
The fourth proportional to 912,356.48, 1,368,067.44 and 486,135.20 is: 728,953.82
Step by Step Solution
- Step 1: Write the proportion equation
912,356.48 : 1,368,067.44 = 486,135.20 : x - Step 2: Convert to fraction form
912,356.48/1,368,067.44 = 486,135.20/x - Step 3: Cross multiply
912,356.48x = 1,368,067.44 × 486,135.20 - Step 4: Simplify right side
912,356.48x = 665,065,738,557.89 - Step 5: Solve for x
x = 665,065,738,557.89/912,356.48 - Step 6: Final answer
x = 728,953.82
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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.