Finding the Fourth Proportional to 1,328,803.92, 1,993,523.40 and 430,246.62
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Solution
The fourth proportional to 1,328,803.92, 1,993,523.40 and 430,246.62 is: 645,472.74
Step by Step Solution
- Step 1: Write the proportion equation
1,328,803.92 : 1,993,523.40 = 430,246.62 : x - Step 2: Convert to fraction form
1,328,803.92/1,993,523.40 = 430,246.62/x - Step 3: Cross multiply
1,328,803.92x = 1,993,523.40 × 430,246.62 - Step 4: Simplify right side
1,328,803.92x = 857,706,704,740.91 - Step 5: Solve for x
x = 857,706,704,740.91/1,328,803.92 - Step 6: Final answer
x = 645,472.74
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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.