Finding the Fourth Proportional to 648,159.80, 972,239.70 and 490,695.80
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Solution
The fourth proportional to 648,159.80, 972,239.70 and 490,695.80 is: 736,043.70
Step by Step Solution
- Step 1: Write the proportion equation
648,159.80 : 972,239.70 = 490,695.80 : x - Step 2: Convert to fraction form
648,159.80/972,239.70 = 490,695.80/x - Step 3: Cross multiply
648,159.80x = 972,239.70 × 490,695.80 - Step 4: Simplify right side
648,159.80x = 477,073,937,383.26 - Step 5: Solve for x
x = 477,073,937,383.26/648,159.80 - Step 6: Final answer
x = 736,043.70
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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.