Finding the Fourth Proportional to 728,854.02, 1,005,820.16 and 406,584.99
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Solution
The fourth proportional to 728,854.02, 1,005,820.16 and 406,584.99 is: 561,088.19
Step by Step Solution
- Step 1: Write the proportion equation
728,854.02 : 1,005,820.16 = 406,584.99 : x - Step 2: Convert to fraction form
728,854.02/1,005,820.16 = 406,584.99/x - Step 3: Cross multiply
728,854.02x = 1,005,820.16 × 406,584.99 - Step 4: Simplify right side
728,854.02x = 408,951,380,711.86 - Step 5: Solve for x
x = 408,951,380,711.86/728,854.02 - Step 6: Final answer
x = 561,088.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.