Finding the Fourth Proportional to 442,903.20, 664,354.80 and 418,408.80
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Solution
The fourth proportional to 442,903.20, 664,354.80 and 418,408.80 is: 627,613.20
Step by Step Solution
- Step 1: Write the proportion equation
442,903.20 : 664,354.80 = 418,408.80 : x - Step 2: Convert to fraction form
442,903.20/664,354.80 = 418,408.80/x - Step 3: Cross multiply
442,903.20x = 664,354.80 × 418,408.80 - Step 4: Simplify right side
442,903.20x = 277,971,894,642.24 - Step 5: Solve for x
x = 277,971,894,642.24/442,903.20 - Step 6: Final answer
x = 627,613.20
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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.