Finding the Fourth Proportional to 676,930.48, 934,131.92 and 405,148.08
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Solution
The fourth proportional to 676,930.48, 934,131.92 and 405,148.08 is: 559,085.11
Step by Step Solution
- Step 1: Write the proportion equation
676,930.48 : 934,131.92 = 405,148.08 : x - Step 2: Convert to fraction form
676,930.48/934,131.92 = 405,148.08/x - Step 3: Cross multiply
676,930.48x = 934,131.92 × 405,148.08 - Step 4: Simplify right side
676,930.48x = 378,461,753,854.71 - Step 5: Solve for x
x = 378,461,753,854.71/676,930.48 - Step 6: Final answer
x = 559,085.11
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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.