Finding the Fourth Proportional to 989,991.28, 1,366,187.61 and 537,282.28
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Solution
The fourth proportional to 989,991.28, 1,366,187.61 and 537,282.28 is: 741,449.35
Step by Step Solution
- Step 1: Write the proportion equation
989,991.28 : 1,366,187.61 = 537,282.28 : x - Step 2: Convert to fraction form
989,991.28/1,366,187.61 = 537,282.28/x - Step 3: Cross multiply
989,991.28x = 1,366,187.61 × 537,282.28 - Step 4: Simplify right side
989,991.28x = 734,028,394,008.55 - Step 5: Solve for x
x = 734,028,394,008.55/989,991.28 - Step 6: Final answer
x = 741,449.35
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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.