Finding the Fourth Proportional to 552,643.20, 828,478.80 and 374,572.80
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Solution
The fourth proportional to 552,643.20, 828,478.80 and 374,572.80 is: 561,529.80
Step by Step Solution
- Step 1: Write the proportion equation
552,643.20 : 828,478.80 = 374,572.80 : x - Step 2: Convert to fraction form
552,643.20/828,478.80 = 374,572.80/x - Step 3: Cross multiply
552,643.20x = 828,478.80 × 374,572.80 - Step 4: Simplify right side
552,643.20x = 310,325,623,856.64 - Step 5: Solve for x
x = 310,325,623,856.64/552,643.20 - Step 6: Final answer
x = 561,529.80
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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.