Finding the Fourth Proportional to 555,778.26, 766,550.88 and 478,385.63
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Solution
The fourth proportional to 555,778.26, 766,550.88 and 478,385.63 is: 659,807.96
Step by Step Solution
- Step 1: Write the proportion equation
555,778.26 : 766,550.88 = 478,385.63 : x - Step 2: Convert to fraction form
555,778.26/766,550.88 = 478,385.63/x - Step 3: Cross multiply
555,778.26x = 766,550.88 × 478,385.63 - Step 4: Simplify right side
555,778.26x = 366,706,921,823.10 - Step 5: Solve for x
x = 366,706,921,823.10/555,778.26 - Step 6: Final answer
x = 659,807.96
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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.