Finding the Fourth Proportional to 656,465.42, 905,044.86 and 492,424.62
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Solution
The fourth proportional to 656,465.42, 905,044.86 and 492,424.62 is: 678,887.81
Step by Step Solution
- Step 1: Write the proportion equation
656,465.42 : 905,044.86 = 492,424.62 : x - Step 2: Convert to fraction form
656,465.42/905,044.86 = 492,424.62/x - Step 3: Cross multiply
656,465.42x = 905,044.86 × 492,424.62 - Step 4: Simplify right side
656,465.42x = 445,666,371,268.45 - Step 5: Solve for x
x = 445,666,371,268.45/656,465.42 - Step 6: Final answer
x = 678,887.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.