Finding the Fourth Proportional to 1,252,421.07, 1,878,626.75 and 453,515.75
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Solution
The fourth proportional to 1,252,421.07, 1,878,626.75 and 453,515.75 is: 680,271.86
Step by Step Solution
- Step 1: Write the proportion equation
1,252,421.07 : 1,878,626.75 = 453,515.75 : x - Step 2: Convert to fraction form
1,252,421.07/1,878,626.75 = 453,515.75/x - Step 3: Cross multiply
1,252,421.07x = 1,878,626.75 × 453,515.75 - Step 4: Simplify right side
1,252,421.07x = 851,986,807,835.60 - Step 5: Solve for x
x = 851,986,807,835.60/1,252,421.07 - Step 6: Final answer
x = 680,271.86
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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.