Finding the Fourth Proportional to 709,919.22, 979,683.62 and 387,629.13
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Solution
The fourth proportional to 709,919.22, 979,683.62 and 387,629.13 is: 534,925.52
Step by Step Solution
- Step 1: Write the proportion equation
709,919.22 : 979,683.62 = 387,629.13 : x - Step 2: Convert to fraction form
709,919.22/979,683.62 = 387,629.13/x - Step 3: Cross multiply
709,919.22x = 979,683.62 × 387,629.13 - Step 4: Simplify right side
709,919.22x = 379,753,907,357.71 - Step 5: Solve for x
x = 379,753,907,357.71/709,919.22 - Step 6: Final answer
x = 534,925.52
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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.