Finding the Fourth Proportional to 782,209.32, 1,173,651.14 and 422,308.71
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Solution
The fourth proportional to 782,209.32, 1,173,651.14 and 422,308.71 is: 633,645.09
Step by Step Solution
- Step 1: Write the proportion equation
782,209.32 : 1,173,651.14 = 422,308.71 : x - Step 2: Convert to fraction form
782,209.32/1,173,651.14 = 422,308.71/x - Step 3: Cross multiply
782,209.32x = 1,173,651.14 × 422,308.71 - Step 4: Simplify right side
782,209.32x = 495,643,090,943.63 - Step 5: Solve for x
x = 495,643,090,943.63/782,209.32 - Step 6: Final answer
x = 633,645.09
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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.