Finding the Fourth Proportional to 1,628,132.36, 2,442,315.16 and 430,042.72
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Solution
The fourth proportional to 1,628,132.36, 2,442,315.16 and 430,042.72 is: 645,094.88
Step by Step Solution
- Step 1: Write the proportion equation
1,628,132.36 : 2,442,315.16 = 430,042.72 : x - Step 2: Convert to fraction form
1,628,132.36/2,442,315.16 = 430,042.72/x - Step 3: Cross multiply
1,628,132.36x = 2,442,315.16 × 430,042.72 - Step 4: Simplify right side
1,628,132.36x = 1,050,299,854,503.64 - Step 5: Solve for x
x = 1,050,299,854,503.64/1,628,132.36 - Step 6: Final answer
x = 645,094.88
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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.