Finding the Fourth Proportional to 717,135.36, 989,639.52 and 394,839.36
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Solution
The fourth proportional to 717,135.36, 989,639.52 and 394,839.36 is: 544,874.31
Step by Step Solution
- Step 1: Write the proportion equation
717,135.36 : 989,639.52 = 394,839.36 : x - Step 2: Convert to fraction form
717,135.36/989,639.52 = 394,839.36/x - Step 3: Cross multiply
717,135.36x = 989,639.52 × 394,839.36 - Step 4: Simplify right side
717,135.36x = 390,748,634,707.51 - Step 5: Solve for x
x = 390,748,634,707.51/717,135.36 - Step 6: Final answer
x = 544,874.31
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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.