Finding the Fourth Proportional to 2,876,726.52, 3,969,878.58 and 1,587,566.70
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Solution
The fourth proportional to 2,876,726.52, 3,969,878.58 and 1,587,566.70 is: 2,190,839.83
Step by Step Solution
- Step 1: Write the proportion equation
2,876,726.52 : 3,969,878.58 = 1,587,566.70 : x - Step 2: Convert to fraction form
2,876,726.52/3,969,878.58 = 1,587,566.70/x - Step 3: Cross multiply
2,876,726.52x = 3,969,878.58 × 1,587,566.70 - Step 4: Simplify right side
2,876,726.52x = 6,302,447,036,651.29 - Step 5: Solve for x
x = 6,302,447,036,651.29/2,876,726.52 - Step 6: Final answer
x = 2,190,839.83
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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.