Finding the Fourth Proportional to 716,869.79, 1,075,307.50 and 290,413.68
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Solution
The fourth proportional to 716,869.79, 1,075,307.50 and 290,413.68 is: 435,621.66
Step by Step Solution
- Step 1: Write the proportion equation
716,869.79 : 1,075,307.50 = 290,413.68 : x - Step 2: Convert to fraction form
716,869.79/1,075,307.50 = 290,413.68/x - Step 3: Cross multiply
716,869.79x = 1,075,307.50 × 290,413.68 - Step 4: Simplify right side
716,869.79x = 312,284,008,206.60 - Step 5: Solve for x
x = 312,284,008,206.60/716,869.79 - Step 6: Final answer
x = 435,621.66
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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.