Finding the Fourth Proportional to 690,217.23, 952,353.36 and 435,420.75
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Solution
The fourth proportional to 690,217.23, 952,353.36 and 435,420.75 is: 600,788.27
Step by Step Solution
- Step 1: Write the proportion equation
690,217.23 : 952,353.36 = 435,420.75 : x - Step 2: Convert to fraction form
690,217.23/952,353.36 = 435,420.75/x - Step 3: Cross multiply
690,217.23x = 952,353.36 × 435,420.75 - Step 4: Simplify right side
690,217.23x = 414,674,414,276.22 - Step 5: Solve for x
x = 414,674,414,276.22/690,217.23 - Step 6: Final answer
x = 600,788.27
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1.5x scale
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.