Finding the Fourth Proportional to 822,124.33, 1,134,216.61 and 499,716.79
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Solution
The fourth proportional to 822,124.33, 1,134,216.61 and 499,716.79 is: 689,417.72
Step by Step Solution
- Step 1: Write the proportion equation
822,124.33 : 1,134,216.61 = 499,716.79 : x - Step 2: Convert to fraction form
822,124.33/1,134,216.61 = 499,716.79/x - Step 3: Cross multiply
822,124.33x = 1,134,216.61 × 499,716.79 - Step 4: Simplify right side
822,124.33x = 566,787,079,429.05 - Step 5: Solve for x
x = 566,787,079,429.05/822,124.33 - Step 6: Final answer
x = 689,417.72
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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.