Finding the Fourth Proportional to 1,070,417.93, 1,605,226.86 and 430,505.68
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Solution
The fourth proportional to 1,070,417.93, 1,605,226.86 and 430,505.68 is: 645,597.63
Step by Step Solution
- Step 1: Write the proportion equation
1,070,417.93 : 1,605,226.86 = 430,505.68 : x - Step 2: Convert to fraction form
1,070,417.93/1,605,226.86 = 430,505.68/x - Step 3: Cross multiply
1,070,417.93x = 1,605,226.86 × 430,505.68 - Step 4: Simplify right side
1,070,417.93x = 691,059,278,766.04 - Step 5: Solve for x
x = 691,059,278,766.04/1,070,417.93 - Step 6: Final answer
x = 645,597.63
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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.