Finding the Fourth Proportional to 617,141.36, 851,312.12 and 358,989.26
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Solution
The fourth proportional to 617,141.36, 851,312.12 and 358,989.26 is: 495,205.68
Step by Step Solution
- Step 1: Write the proportion equation
617,141.36 : 851,312.12 = 358,989.26 : x - Step 2: Convert to fraction form
617,141.36/851,312.12 = 358,989.26/x - Step 3: Cross multiply
617,141.36x = 851,312.12 × 358,989.26 - Step 4: Simplify right side
617,141.36x = 305,611,901,936.32 - Step 5: Solve for x
x = 305,611,901,936.32/617,141.36 - Step 6: Final answer
x = 495,205.68
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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.