Finding the Fourth Proportional to 864,658.14, 1,190,586.81 and 783,558.09
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Solution
The fourth proportional to 864,658.14, 1,190,586.81 and 783,558.09 is: 1,078,916.49
Step by Step Solution
- Step 1: Write the proportion equation
864,658.14 : 1,190,586.81 = 783,558.09 : x - Step 2: Convert to fraction form
864,658.14/1,190,586.81 = 783,558.09/x - Step 3: Cross multiply
864,658.14x = 1,190,586.81 × 783,558.09 - Step 4: Simplify right side
864,658.14x = 932,893,926,822.79 - Step 5: Solve for x
x = 932,893,926,822.79/864,658.14 - Step 6: Final answer
x = 1,078,916.49
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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.