Finding the Fourth Proportional to 691,968.57, 1,038,125.67 and 193,328.25
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Solution
The fourth proportional to 691,968.57, 1,038,125.67 and 193,328.25 is: 290,040.66
Step by Step Solution
- Step 1: Write the proportion equation
691,968.57 : 1,038,125.67 = 193,328.25 : x - Step 2: Convert to fraction form
691,968.57/1,038,125.67 = 193,328.25/x - Step 3: Cross multiply
691,968.57x = 1,038,125.67 × 193,328.25 - Step 4: Simplify right side
691,968.57x = 200,699,019,061.18 - Step 5: Solve for x
x = 200,699,019,061.18/691,968.57 - Step 6: Final answer
x = 290,040.66
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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.