Finding the Fourth Proportional to 498,713.19, 749,176.97 and 309,313.53
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Solution
The fourth proportional to 498,713.19, 749,176.97 and 309,313.53 is: 464,656.99
Step by Step Solution
- Step 1: Write the proportion equation
498,713.19 : 749,176.97 = 309,313.53 : x - Step 2: Convert to fraction form
498,713.19/749,176.97 = 309,313.53/x - Step 3: Cross multiply
498,713.19x = 749,176.97 × 309,313.53 - Step 4: Simplify right side
498,713.19x = 231,730,571,638.84 - Step 5: Solve for x
x = 231,730,571,638.84/498,713.19 - Step 6: Final answer
x = 464,656.99
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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.