Finding the Fourth Proportional to 549,087.45, 757,740.99 and 307,370.49
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Solution
The fourth proportional to 549,087.45, 757,740.99 and 307,370.49 is: 424,171.45
Step by Step Solution
- Step 1: Write the proportion equation
549,087.45 : 757,740.99 = 307,370.49 : x - Step 2: Convert to fraction form
549,087.45/757,740.99 = 307,370.49/x - Step 3: Cross multiply
549,087.45x = 757,740.99 × 307,370.49 - Step 4: Simplify right side
549,087.45x = 232,907,219,389.39 - Step 5: Solve for x
x = 232,907,219,389.39/549,087.45 - Step 6: Final answer
x = 424,171.45
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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.