Finding the Fourth Proportional to 431,267.40, 646,901.10 and 325,513.80
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Solution
The fourth proportional to 431,267.40, 646,901.10 and 325,513.80 is: 488,270.70
Step by Step Solution
- Step 1: Write the proportion equation
431,267.40 : 646,901.10 = 325,513.80 : x - Step 2: Convert to fraction form
431,267.40/646,901.10 = 325,513.80/x - Step 3: Cross multiply
431,267.40x = 646,901.10 × 325,513.80 - Step 4: Simplify right side
431,267.40x = 210,575,235,285.18 - Step 5: Solve for x
x = 210,575,235,285.18/431,267.40 - Step 6: Final answer
x = 488,270.70
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1.5x scale
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.