Finding the Fourth Proportional to 478,261.80, 660,073.86 and 363,351.96
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Solution
The fourth proportional to 478,261.80, 660,073.86 and 363,351.96 is: 501,480.84
Step by Step Solution
- Step 1: Write the proportion equation
478,261.80 : 660,073.86 = 363,351.96 : x - Step 2: Convert to fraction form
478,261.80/660,073.86 = 363,351.96/x - Step 3: Cross multiply
478,261.80x = 660,073.86 × 363,351.96 - Step 4: Simplify right side
478,261.80x = 239,839,130,775.77 - Step 5: Solve for x
x = 239,839,130,775.77/478,261.80 - Step 6: Final answer
x = 501,480.84
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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.