Finding the Fourth Proportional to 611,458.74, 913,070.66 and 499,361.49
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Solution
The fourth proportional to 611,458.74, 913,070.66 and 499,361.49 is: 745,679.63
Step by Step Solution
- Step 1: Write the proportion equation
611,458.74 : 913,070.66 = 499,361.49 : x - Step 2: Convert to fraction form
611,458.74/913,070.66 = 499,361.49/x - Step 3: Cross multiply
611,458.74x = 913,070.66 × 499,361.49 - Step 4: Simplify right side
611,458.74x = 455,952,320,687.53 - Step 5: Solve for x
x = 455,952,320,687.53/611,458.74 - Step 6: Final answer
x = 745,679.63
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.