Finding the Fourth Proportional to 1,329,426.45, 1,993,721.39 and 430,659.66
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Solution
The fourth proportional to 1,329,426.45, 1,993,721.39 and 430,659.66 is: 645,853.99
Step by Step Solution
- Step 1: Write the proportion equation
1,329,426.45 : 1,993,721.39 = 430,659.66 : x - Step 2: Convert to fraction form
1,329,426.45/1,993,721.39 = 430,659.66/x - Step 3: Cross multiply
1,329,426.45x = 1,993,721.39 × 430,659.66 - Step 4: Simplify right side
1,329,426.45x = 858,615,375,952.13 - Step 5: Solve for x
x = 858,615,375,952.13/1,329,426.45 - Step 6: Final answer
x = 645,853.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.