Finding the Fourth Proportional to 790,083.81, 1,090,312.16 and 427,514.09
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Solution
The fourth proportional to 790,083.81, 1,090,312.16 and 427,514.09 is: 589,967.55
Step by Step Solution
- Step 1: Write the proportion equation
790,083.81 : 1,090,312.16 = 427,514.09 : x - Step 2: Convert to fraction form
790,083.81/1,090,312.16 = 427,514.09/x - Step 3: Cross multiply
790,083.81x = 1,090,312.16 × 427,514.09 - Step 4: Simplify right side
790,083.81x = 466,123,810,898.33 - Step 5: Solve for x
x = 466,123,810,898.33/790,083.81 - Step 6: Final answer
x = 589,967.55
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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.