Finding the Fourth Proportional to 3,721,419.04, 5,128,790.88 and 2,905,198.24
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Solution
The fourth proportional to 3,721,419.04, 5,128,790.88 and 2,905,198.24 is: 4,003,890.47
Step by Step Solution
- Step 1: Write the proportion equation
3,721,419.04 : 5,128,790.88 = 2,905,198.24 : x - Step 2: Convert to fraction form
3,721,419.04/5,128,790.88 = 2,905,198.24/x - Step 3: Cross multiply
3,721,419.04x = 5,128,790.88 × 2,905,198.24 - Step 4: Simplify right side
3,721,419.04x = 14,900,154,237,904.05 - Step 5: Solve for x
x = 14,900,154,237,904.05/3,721,419.04 - Step 6: Final answer
x = 4,003,890.47
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1.5x scale
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.