Finding the Fourth Proportional to 405,176.40, 606,962.70 and 355,312.80
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Solution
The fourth proportional to 405,176.40, 606,962.70 and 355,312.80 is: 532,265.99
Step by Step Solution
- Step 1: Write the proportion equation
405,176.40 : 606,962.70 = 355,312.80 : x - Step 2: Convert to fraction form
405,176.40/606,962.70 = 355,312.80/x - Step 3: Cross multiply
405,176.40x = 606,962.70 × 355,312.80 - Step 4: Simplify right side
405,176.40x = 215,661,616,432.56 - Step 5: Solve for x
x = 215,661,616,432.56/405,176.40 - Step 6: Final answer
x = 532,265.99
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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.