Finding the Fourth Proportional to 566,413.68, 781,621.20 and 311,716.20
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Solution
The fourth proportional to 566,413.68, 781,621.20 and 311,716.20 is: 430,152.02
Step by Step Solution
- Step 1: Write the proportion equation
566,413.68 : 781,621.20 = 311,716.20 : x - Step 2: Convert to fraction form
566,413.68/781,621.20 = 311,716.20/x - Step 3: Cross multiply
566,413.68x = 781,621.20 × 311,716.20 - Step 4: Simplify right side
566,413.68x = 243,643,990,303.44 - Step 5: Solve for x
x = 243,643,990,303.44/566,413.68 - Step 6: Final answer
x = 430,152.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.