Finding the Fourth Proportional to 1,247,682.24, 1,721,772.72 and 738,393.12
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Solution
The fourth proportional to 1,247,682.24, 1,721,772.72 and 738,393.12 is: 1,018,965.48
Step by Step Solution
- Step 1: Write the proportion equation
1,247,682.24 : 1,721,772.72 = 738,393.12 : x - Step 2: Convert to fraction form
1,247,682.24/1,721,772.72 = 738,393.12/x - Step 3: Cross multiply
1,247,682.24x = 1,721,772.72 × 738,393.12 - Step 4: Simplify right side
1,247,682.24x = 1,271,345,130,651.69 - Step 5: Solve for x
x = 1,271,345,130,651.69/1,247,682.24 - Step 6: Final answer
x = 1,018,965.48
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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.