Finding the Fourth Proportional to 613,928.21, 921,520.71 and 506,971.38
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Solution
The fourth proportional to 613,928.21, 921,520.71 and 506,971.38 is: 760,975.99
Step by Step Solution
- Step 1: Write the proportion equation
613,928.21 : 921,520.71 = 506,971.38 : x - Step 2: Convert to fraction form
613,928.21/921,520.71 = 506,971.38/x - Step 3: Cross multiply
613,928.21x = 921,520.71 × 506,971.38 - Step 4: Simplify right side
613,928.21x = 467,184,626,047.28 - Step 5: Solve for x
x = 467,184,626,047.28/613,928.21 - Step 6: Final answer
x = 760,975.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.