Finding the Fourth Proportional to 462,910.56, 638,801.70 and 258,957.09
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Solution
The fourth proportional to 462,910.56, 638,801.70 and 258,957.09 is: 357,352.47
Step by Step Solution
- Step 1: Write the proportion equation
462,910.56 : 638,801.70 = 258,957.09 : x - Step 2: Convert to fraction form
462,910.56/638,801.70 = 258,957.09/x - Step 3: Cross multiply
462,910.56x = 638,801.70 × 258,957.09 - Step 4: Simplify right side
462,910.56x = 165,422,229,270.44 - Step 5: Solve for x
x = 165,422,229,270.44/462,910.56 - Step 6: Final answer
x = 357,352.47
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1.5x scale
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.