Finding the Fourth Proportional to 780,972.93, 1,171,038.29 and 421,336.53
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Solution
The fourth proportional to 780,972.93, 1,171,038.29 and 421,336.53 is: 631,777.61
Step by Step Solution
- Step 1: Write the proportion equation
780,972.93 : 1,171,038.29 = 421,336.53 : x - Step 2: Convert to fraction form
780,972.93/1,171,038.29 = 421,336.53/x - Step 3: Cross multiply
780,972.93x = 1,171,038.29 × 421,336.53 - Step 4: Simplify right side
780,972.93x = 493,401,207,499.05 - Step 5: Solve for x
x = 493,401,207,499.05/780,972.93 - Step 6: Final answer
x = 631,777.61
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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.