Finding the Fourth Proportional to 486,743.84, 728,339.50 and 287,159.84
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Solution
The fourth proportional to 486,743.84, 728,339.50 and 287,159.84 is: 429,691.84
Step by Step Solution
- Step 1: Write the proportion equation
486,743.84 : 728,339.50 = 287,159.84 : x - Step 2: Convert to fraction form
486,743.84/728,339.50 = 287,159.84/x - Step 3: Cross multiply
486,743.84x = 728,339.50 × 287,159.84 - Step 4: Simplify right side
486,743.84x = 209,149,854,285.68 - Step 5: Solve for x
x = 209,149,854,285.68/486,743.84 - Step 6: Final answer
x = 429,691.84
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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.