Finding the Fourth Proportional to 1,687,534.97, 2,328,804.43 and 913,165.82
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Solution
The fourth proportional to 1,687,534.97, 2,328,804.43 and 913,165.82 is: 1,260,172.17
Step by Step Solution
- Step 1: Write the proportion equation
1,687,534.97 : 2,328,804.43 = 913,165.82 : x - Step 2: Convert to fraction form
1,687,534.97/2,328,804.43 = 913,165.82/x - Step 3: Cross multiply
1,687,534.97x = 2,328,804.43 × 913,165.82 - Step 4: Simplify right side
1,687,534.97x = 2,126,584,604,314.94 - Step 5: Solve for x
x = 2,126,584,604,314.94/1,687,534.97 - Step 6: Final answer
x = 1,260,172.17
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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.