Finding the Fourth Proportional to 1,692,309.99, 2,335,376.22 and 917,937.72
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Solution
The fourth proportional to 1,692,309.99, 2,335,376.22 and 917,937.72 is: 1,266,747.78
Step by Step Solution
- Step 1: Write the proportion equation
1,692,309.99 : 2,335,376.22 = 917,937.72 : x - Step 2: Convert to fraction form
1,692,309.99/2,335,376.22 = 917,937.72/x - Step 3: Cross multiply
1,692,309.99x = 2,335,376.22 × 917,937.72 - Step 4: Simplify right side
1,692,309.99x = 2,143,729,922,729.02 - Step 5: Solve for x
x = 2,143,729,922,729.02/1,692,309.99 - Step 6: Final answer
x = 1,266,747.78
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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.