Finding the Fourth Proportional to 998,637.75, 1,378,120.11 and 545,928.75
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Solution
The fourth proportional to 998,637.75, 1,378,120.11 and 545,928.75 is: 753,381.68
Step by Step Solution
- Step 1: Write the proportion equation
998,637.75 : 1,378,120.11 = 545,928.75 : x - Step 2: Convert to fraction form
998,637.75/1,378,120.11 = 545,928.75/x - Step 3: Cross multiply
998,637.75x = 1,378,120.11 × 545,928.75 - Step 4: Simplify right side
998,637.75x = 752,355,389,002.16 - Step 5: Solve for x
x = 752,355,389,002.16/998,637.75 - Step 6: Final answer
x = 753,381.68
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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.