Finding the Fourth Proportional to 709,325.25, 978,734.93 and 422,871.99
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Solution
The fourth proportional to 709,325.25, 978,734.93 and 422,871.99 is: 583,483.51
Step by Step Solution
- Step 1: Write the proportion equation
709,325.25 : 978,734.93 = 422,871.99 : x - Step 2: Convert to fraction form
709,325.25/978,734.93 = 422,871.99/x - Step 3: Cross multiply
709,325.25x = 978,734.93 × 422,871.99 - Step 4: Simplify right side
709,325.25x = 413,879,585,417.25 - Step 5: Solve for x
x = 413,879,585,417.25/709,325.25 - Step 6: Final answer
x = 583,483.51
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.