Finding the Fourth Proportional to 641,689.14, 963,479.93 and 357,934.09
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Solution
The fourth proportional to 641,689.14, 963,479.93 and 357,934.09 is: 537,428.94
Step by Step Solution
- Step 1: Write the proportion equation
641,689.14 : 963,479.93 = 357,934.09 : x - Step 2: Convert to fraction form
641,689.14/963,479.93 = 357,934.09/x - Step 3: Cross multiply
641,689.14x = 963,479.93 × 357,934.09 - Step 4: Simplify right side
641,689.14x = 344,862,311,977.81 - Step 5: Solve for x
x = 344,862,311,977.81/641,689.14 - Step 6: Final answer
x = 537,428.94
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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.