Finding the Fourth Proportional to 1,398,164.14, 1,929,437.68 and 777,955.54
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Solution
The fourth proportional to 1,398,164.14, 1,929,437.68 and 777,955.54 is: 1,073,562.60
Step by Step Solution
- Step 1: Write the proportion equation
1,398,164.14 : 1,929,437.68 = 777,955.54 : x - Step 2: Convert to fraction form
1,398,164.14/1,929,437.68 = 777,955.54/x - Step 3: Cross multiply
1,398,164.14x = 1,929,437.68 × 777,955.54 - Step 4: Simplify right side
1,398,164.14x = 1,501,016,732,240.75 - Step 5: Solve for x
x = 1,501,016,732,240.75/1,398,164.14 - Step 6: Final answer
x = 1,073,562.60
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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.