Finding the Fourth Proportional to 1,007,278.76, 1,390,053.06 and 548,396.48
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Solution
The fourth proportional to 1,007,278.76, 1,390,053.06 and 548,396.48 is: 756,791.70
Step by Step Solution
- Step 1: Write the proportion equation
1,007,278.76 : 1,390,053.06 = 548,396.48 : x - Step 2: Convert to fraction form
1,007,278.76/1,390,053.06 = 548,396.48/x - Step 3: Cross multiply
1,007,278.76x = 1,390,053.06 × 548,396.48 - Step 4: Simplify right side
1,007,278.76x = 762,300,205,117.23 - Step 5: Solve for x
x = 762,300,205,117.23/1,007,278.76 - Step 6: Final answer
x = 756,791.70
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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.