Finding the Fourth Proportional to 1,681,500.55, 2,320,448.99 and 917,540.95
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Solution
The fourth proportional to 1,681,500.55, 2,320,448.99 and 917,540.95 is: 1,266,194.63
Step by Step Solution
- Step 1: Write the proportion equation
1,681,500.55 : 2,320,448.99 = 917,540.95 : x - Step 2: Convert to fraction form
1,681,500.55/2,320,448.99 = 917,540.95/x - Step 3: Cross multiply
1,681,500.55x = 2,320,448.99 × 917,540.95 - Step 4: Simplify right side
1,681,500.55x = 2,129,106,974,218.41 - Step 5: Solve for x
x = 2,129,106,974,218.41/1,681,500.55 - Step 6: Final answer
x = 1,266,194.63
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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.