Finding the Fourth Proportional to 1,361,243.99, 1,878,626.53 and 780,521.15
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Solution
The fourth proportional to 1,361,243.99, 1,878,626.53 and 780,521.15 is: 1,077,182.16
Step by Step Solution
- Step 1: Write the proportion equation
1,361,243.99 : 1,878,626.53 = 780,521.15 : x - Step 2: Convert to fraction form
1,361,243.99/1,878,626.53 = 780,521.15/x - Step 3: Cross multiply
1,361,243.99x = 1,878,626.53 × 780,521.15 - Step 4: Simplify right side
1,361,243.99x = 1,466,307,741,995.46 - Step 5: Solve for x
x = 1,466,307,741,995.46/1,361,243.99 - Step 6: Final answer
x = 1,077,182.16
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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.