Finding the Fourth Proportional to 664,840.03, 917,513.59 and 406,635.97
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Solution
The fourth proportional to 664,840.03, 917,513.59 and 406,635.97 is: 561,178.65
Step by Step Solution
- Step 1: Write the proportion equation
664,840.03 : 917,513.59 = 406,635.97 : x - Step 2: Convert to fraction form
664,840.03/917,513.59 = 406,635.97/x - Step 3: Cross multiply
664,840.03x = 917,513.59 × 406,635.97 - Step 4: Simplify right side
664,840.03x = 373,094,028,657.83 - Step 5: Solve for x
x = 373,094,028,657.83/664,840.03 - Step 6: Final answer
x = 561,178.65
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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.