Finding the Fourth Proportional to 871,143.12, 1,306,899.36 and 310,176
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Solution
The fourth proportional to 871,143.12, 1,306,899.36 and 310,176 is: 465,329.76
Step by Step Solution
- Step 1: Write the proportion equation
871,143.12 : 1,306,899.36 = 310,176 : x - Step 2: Convert to fraction form
871,143.12/1,306,899.36 = 310,176/x - Step 3: Cross multiply
871,143.12x = 1,306,899.36 × 310,176 - Step 4: Simplify right side
871,143.12x = 405,368,815,887.36 - Step 5: Solve for x
x = 405,368,815,887.36/871,143.12 - Step 6: Final answer
x = 465,329.76
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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.