Finding the Fourth Proportional to 943,776.18, 1,302,695.73 and 642,145.14
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Solution
The fourth proportional to 943,776.18, 1,302,695.73 and 642,145.14 is: 886,353.94
Step by Step Solution
- Step 1: Write the proportion equation
943,776.18 : 1,302,695.73 = 642,145.14 : x - Step 2: Convert to fraction form
943,776.18/1,302,695.73 = 642,145.14/x - Step 3: Cross multiply
943,776.18x = 1,302,695.73 × 642,145.14 - Step 4: Simplify right side
943,776.18x = 836,519,731,918.25 - Step 5: Solve for x
x = 836,519,731,918.25/943,776.18 - Step 6: Final answer
x = 886,353.94
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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.