Finding the Fourth Proportional to 782,124.84, 1,079,332.20 and 424,428.84
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Solution
The fourth proportional to 782,124.84, 1,079,332.20 and 424,428.84 is: 585,711.76
Step by Step Solution
- Step 1: Write the proportion equation
782,124.84 : 1,079,332.20 = 424,428.84 : x - Step 2: Convert to fraction form
782,124.84/1,079,332.20 = 424,428.84/x - Step 3: Cross multiply
782,124.84x = 1,079,332.20 × 424,428.84 - Step 4: Simplify right side
782,124.84x = 458,099,713,620.65 - Step 5: Solve for x
x = 458,099,713,620.65/782,124.84 - Step 6: Final answer
x = 585,711.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.