Finding the Fourth Proportional to 417,126.10, 625,689.14 and 192,420.05
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Solution
The fourth proportional to 417,126.10, 625,689.14 and 192,420.05 is: 288,630.07
Step by Step Solution
- Step 1: Write the proportion equation
417,126.10 : 625,689.14 = 192,420.05 : x - Step 2: Convert to fraction form
417,126.10/625,689.14 = 192,420.05/x - Step 3: Cross multiply
417,126.10x = 625,689.14 × 192,420.05 - Step 4: Simplify right side
417,126.10x = 120,395,135,603.26 - Step 5: Solve for x
x = 120,395,135,603.26/417,126.10 - Step 6: Final answer
x = 288,630.07
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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.