Finding the Fourth Proportional to 689,691.48, 1,034,537.79 and 329,777.65
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Solution
The fourth proportional to 689,691.48, 1,034,537.79 and 329,777.65 is: 494,666.75
Step by Step Solution
- Step 1: Write the proportion equation
689,691.48 : 1,034,537.79 = 329,777.65 : x - Step 2: Convert to fraction form
689,691.48/1,034,537.79 = 329,777.65/x - Step 3: Cross multiply
689,691.48x = 1,034,537.79 × 329,777.65 - Step 4: Simplify right side
689,691.48x = 341,167,440,575.81 - Step 5: Solve for x
x = 341,167,440,575.81/689,691.48 - Step 6: Final answer
x = 494,666.75
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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.