Finding the Fourth Proportional to 787,423.71, 1,181,656.68 and 432,684.75
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Solution
The fourth proportional to 787,423.71, 1,181,656.68 and 432,684.75 is: 649,313.47
Step by Step Solution
- Step 1: Write the proportion equation
787,423.71 : 1,181,656.68 = 432,684.75 : x - Step 2: Convert to fraction form
787,423.71/1,181,656.68 = 432,684.75/x - Step 3: Cross multiply
787,423.71x = 1,181,656.68 × 432,684.75 - Step 4: Simplify right side
787,423.71x = 511,284,825,171.63 - Step 5: Solve for x
x = 511,284,825,171.63/787,423.71 - Step 6: Final answer
x = 649,313.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.