Finding the Fourth Proportional to 549,313.40, 823,970.10 and 398,847.80
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Solution
The fourth proportional to 549,313.40, 823,970.10 and 398,847.80 is: 598,271.70
Step by Step Solution
- Step 1: Write the proportion equation
549,313.40 : 823,970.10 = 398,847.80 : x - Step 2: Convert to fraction form
549,313.40/823,970.10 = 398,847.80/x - Step 3: Cross multiply
549,313.40x = 823,970.10 × 398,847.80 - Step 4: Simplify right side
549,313.40x = 328,638,661,650.78 - Step 5: Solve for x
x = 328,638,661,650.78/549,313.40 - Step 6: Final answer
x = 598,271.70
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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.