Finding the Fourth Proportional to 1,420,968.68, 1,960,878.48 and 776,411
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Solution
The fourth proportional to 1,420,968.68, 1,960,878.48 and 776,411 is: 1,071,415.33
Step by Step Solution
- Step 1: Write the proportion equation
1,420,968.68 : 1,960,878.48 = 776,411 : x - Step 2: Convert to fraction form
1,420,968.68/1,960,878.48 = 776,411/x - Step 3: Cross multiply
1,420,968.68x = 1,960,878.48 × 776,411 - Step 4: Simplify right side
1,420,968.68x = 1,522,447,621,535.28 - Step 5: Solve for x
x = 1,522,447,621,535.28/1,420,968.68 - Step 6: Final answer
x = 1,071,415.33
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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.