Finding the Fourth Proportional to 430,829.40, 646,244.10 and 341,599.80
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Solution
The fourth proportional to 430,829.40, 646,244.10 and 341,599.80 is: 512,399.70
Step by Step Solution
- Step 1: Write the proportion equation
430,829.40 : 646,244.10 = 341,599.80 : x - Step 2: Convert to fraction form
430,829.40/646,244.10 = 341,599.80/x - Step 3: Cross multiply
430,829.40x = 646,244.10 × 341,599.80 - Step 4: Simplify right side
430,829.40x = 220,756,855,311.18 - Step 5: Solve for x
x = 220,756,855,311.18/430,829.40 - Step 6: Final answer
x = 512,399.70
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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.