Finding the Fourth Proportional to 430,823.40, 646,235.10 and 341,593.80
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Solution
The fourth proportional to 430,823.40, 646,235.10 and 341,593.80 is: 512,390.70
Step by Step Solution
- Step 1: Write the proportion equation
430,823.40 : 646,235.10 = 341,593.80 : x - Step 2: Convert to fraction form
430,823.40/646,235.10 = 341,593.80/x - Step 3: Cross multiply
430,823.40x = 646,235.10 × 341,593.80 - Step 4: Simplify right side
430,823.40x = 220,749,903,502.38 - Step 5: Solve for x
x = 220,749,903,502.38/430,823.40 - Step 6: Final answer
x = 512,390.70
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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.