Finding the Fourth Proportional to 790,557.91, 1,090,973.39 and 427,981.75
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Solution
The fourth proportional to 790,557.91, 1,090,973.39 and 427,981.75 is: 590,616.69
Step by Step Solution
- Step 1: Write the proportion equation
790,557.91 : 1,090,973.39 = 427,981.75 : x - Step 2: Convert to fraction form
790,557.91/1,090,973.39 = 427,981.75/x - Step 3: Cross multiply
790,557.91x = 1,090,973.39 × 427,981.75 - Step 4: Simplify right side
790,557.91x = 466,916,695,788.29 - Step 5: Solve for x
x = 466,916,695,788.29/790,557.91 - Step 6: Final answer
x = 590,616.69
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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.