Finding the Fourth Proportional to 1,235,704.80, 1,854,723.60 and 763,312.80
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Solution
The fourth proportional to 1,235,704.80, 1,854,723.60 and 763,312.80 is: 1,145,689.70
Step by Step Solution
- Step 1: Write the proportion equation
1,235,704.80 : 1,854,723.60 = 763,312.80 : x - Step 2: Convert to fraction form
1,235,704.80/1,854,723.60 = 763,312.80/x - Step 3: Cross multiply
1,235,704.80x = 1,854,723.60 × 763,312.80 - Step 4: Simplify right side
1,235,704.80x = 1,415,734,264,342.08 - Step 5: Solve for x
x = 1,415,734,264,342.08/1,235,704.80 - Step 6: Final answer
x = 1,145,689.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.