Finding the Fourth Proportional to 996,979.70, 1,495,469.55 and 577,075.70
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Solution
The fourth proportional to 996,979.70, 1,495,469.55 and 577,075.70 is: 865,613.55
Step by Step Solution
- Step 1: Write the proportion equation
996,979.70 : 1,495,469.55 = 577,075.70 : x - Step 2: Convert to fraction form
996,979.70/1,495,469.55 = 577,075.70/x - Step 3: Cross multiply
996,979.70x = 1,495,469.55 × 577,075.70 - Step 4: Simplify right side
996,979.70x = 862,999,137,394.94 - Step 5: Solve for x
x = 862,999,137,394.94/996,979.70 - Step 6: Final answer
x = 865,613.55
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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.