Finding the Fourth Proportional to 505,413.84, 697,457.76 and 279,054.48
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Solution
The fourth proportional to 505,413.84, 697,457.76 and 279,054.48 is: 385,087.82
Step by Step Solution
- Step 1: Write the proportion equation
505,413.84 : 697,457.76 = 279,054.48 : x - Step 2: Convert to fraction form
505,413.84/697,457.76 = 279,054.48/x - Step 3: Cross multiply
505,413.84x = 697,457.76 × 279,054.48 - Step 4: Simplify right side
505,413.84x = 194,628,712,538.77 - Step 5: Solve for x
x = 194,628,712,538.77/505,413.84 - Step 6: Final answer
x = 385,087.82
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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.