Finding the Fourth Proportional to 411,507.70, 616,929.36 and 378,292.60
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Solution
The fourth proportional to 411,507.70, 616,929.36 and 378,292.60 is: 567,133.52
Step by Step Solution
- Step 1: Write the proportion equation
411,507.70 : 616,929.36 = 378,292.60 : x - Step 2: Convert to fraction form
411,507.70/616,929.36 = 378,292.60/x - Step 3: Cross multiply
411,507.70x = 616,929.36 × 378,292.60 - Step 4: Simplify right side
411,507.70x = 233,379,811,610.74 - Step 5: Solve for x
x = 233,379,811,610.74/411,507.70 - Step 6: Final answer
x = 567,133.52
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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.