Finding the Fourth Proportional to 489,313.80, 733,970.70 and 340,014.60
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Solution
The fourth proportional to 489,313.80, 733,970.70 and 340,014.60 is: 510,021.90
Step by Step Solution
- Step 1: Write the proportion equation
489,313.80 : 733,970.70 = 340,014.60 : x - Step 2: Convert to fraction form
489,313.80/733,970.70 = 340,014.60/x - Step 3: Cross multiply
489,313.80x = 733,970.70 × 340,014.60 - Step 4: Simplify right side
489,313.80x = 249,560,753,972.22 - Step 5: Solve for x
x = 249,560,753,972.22/489,313.80 - Step 6: Final answer
x = 510,021.90
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1.5x scale
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.