Finding the Fourth Proportional to 4,692,781.78, 6,472,693.26 and 4,306,841.28
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Solution
The fourth proportional to 4,692,781.78, 6,472,693.26 and 4,306,841.28 is: 5,940,370.52
Step by Step Solution
- Step 1: Write the proportion equation
4,692,781.78 : 6,472,693.26 = 4,306,841.28 : x - Step 2: Convert to fraction form
4,692,781.78/6,472,693.26 = 4,306,841.28/x - Step 3: Cross multiply
4,692,781.78x = 6,472,693.26 × 4,306,841.28 - Step 4: Simplify right side
4,692,781.78x = 27,876,862,524,945.77 - Step 5: Solve for x
x = 27,876,862,524,945.77/4,692,781.78 - Step 6: Final answer
x = 5,940,370.52
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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.