Finding the Fourth Proportional to 1,580,670.68, 2,181,331.49 and 855,518.58
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Solution
The fourth proportional to 1,580,670.68, 2,181,331.49 and 855,518.58 is: 1,180,618.86
Step by Step Solution
- Step 1: Write the proportion equation
1,580,670.68 : 2,181,331.49 = 855,518.58 : x - Step 2: Convert to fraction form
1,580,670.68/2,181,331.49 = 855,518.58/x - Step 3: Cross multiply
1,580,670.68x = 2,181,331.49 × 855,518.58 - Step 4: Simplify right side
1,580,670.68x = 1,866,169,614,556.49 - Step 5: Solve for x
x = 1,866,169,614,556.49/1,580,670.68 - Step 6: Final answer
x = 1,180,618.86
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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.