Finding the Fourth Proportional to 871,387.08, 1,306,686.95 and 310,436.16
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Solution
The fourth proportional to 871,387.08, 1,306,686.95 and 310,436.16 is: 465,513.99
Step by Step Solution
- Step 1: Write the proportion equation
871,387.08 : 1,306,686.95 = 310,436.16 : x - Step 2: Convert to fraction form
871,387.08/1,306,686.95 = 310,436.16/x - Step 3: Cross multiply
871,387.08x = 1,306,686.95 × 310,436.16 - Step 4: Simplify right side
871,387.08x = 405,642,879,080.11 - Step 5: Solve for x
x = 405,642,879,080.11/871,387.08 - Step 6: Final answer
x = 465,513.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.