Finding the Fourth Proportional to 1,036,689.20, 1,554,928.68 and 278,432.17
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Solution
The fourth proportional to 1,036,689.20, 1,554,928.68 and 278,432.17 is: 417,620.02
Step by Step Solution
- Step 1: Write the proportion equation
1,036,689.20 : 1,554,928.68 = 278,432.17 : x - Step 2: Convert to fraction form
1,036,689.20/1,554,928.68 = 278,432.17/x - Step 3: Cross multiply
1,036,689.20x = 1,554,928.68 × 278,432.17 - Step 4: Simplify right side
1,036,689.20x = 432,942,166,567.64 - Step 5: Solve for x
x = 432,942,166,567.64/1,036,689.20 - Step 6: Final answer
x = 417,620.02
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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.