Finding the Fourth Proportional to 1,420,660.56, 1,960,486.86 and 776,064.18
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Solution
The fourth proportional to 1,420,660.56, 1,960,486.86 and 776,064.18 is: 1,070,955.07
Step by Step Solution
- Step 1: Write the proportion equation
1,420,660.56 : 1,960,486.86 = 776,064.18 : x - Step 2: Convert to fraction form
1,420,660.56/1,960,486.86 = 776,064.18/x - Step 3: Cross multiply
1,420,660.56x = 1,960,486.86 × 776,064.18 - Step 4: Simplify right side
1,420,660.56x = 1,521,463,627,406.68 - Step 5: Solve for x
x = 1,521,463,627,406.68/1,420,660.56 - Step 6: Final answer
x = 1,070,955.07
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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.