Finding the Fourth Proportional to 402,708.80, 603,544.80 and 308,748.80
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Solution
The fourth proportional to 402,708.80, 603,544.80 and 308,748.80 is: 462,725.75
Step by Step Solution
- Step 1: Write the proportion equation
402,708.80 : 603,544.80 = 308,748.80 : x - Step 2: Convert to fraction form
402,708.80/603,544.80 = 308,748.80/x - Step 3: Cross multiply
402,708.80x = 603,544.80 × 308,748.80 - Step 4: Simplify right side
402,708.80x = 186,343,732,746.24 - Step 5: Solve for x
x = 186,343,732,746.24/402,708.80 - Step 6: Final answer
x = 462,725.75
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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.