Finding the Fourth Proportional to 690,205.23, 952,336.80 and 435,408.75
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Solution
The fourth proportional to 690,205.23, 952,336.80 and 435,408.75 is: 600,771.71
Step by Step Solution
- Step 1: Write the proportion equation
690,205.23 : 952,336.80 = 435,408.75 : x - Step 2: Convert to fraction form
690,205.23/952,336.80 = 435,408.75/x - Step 3: Cross multiply
690,205.23x = 952,336.80 × 435,408.75 - Step 4: Simplify right side
690,205.23x = 414,655,775,667 - Step 5: Solve for x
x = 414,655,775,667/690,205.23 - Step 6: Final answer
x = 600,771.71
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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.