Finding the Fourth Proportional to 513,623.20, 717,672.80 and 513,623.20
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Solution
The fourth proportional to 513,623.20, 717,672.80 and 513,623.20 is: 717,672.80
Step by Step Solution
- Step 1: Write the proportion equation
513,623.20 : 717,672.80 = 513,623.20 : x - Step 2: Convert to fraction form
513,623.20/717,672.80 = 513,623.20/x - Step 3: Cross multiply
513,623.20x = 717,672.80 × 513,623.20 - Step 4: Simplify right side
513,623.20x = 368,613,400,088.96 - Step 5: Solve for x
x = 368,613,400,088.96/513,623.20 - Step 6: Final answer
x = 717,672.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.