Finding the Fourth Proportional to 877,681.80, 1,211,193.96 and 475,273.80
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Solution
The fourth proportional to 877,681.80, 1,211,193.96 and 475,273.80 is: 655,874.09
Step by Step Solution
- Step 1: Write the proportion equation
877,681.80 : 1,211,193.96 = 475,273.80 : x - Step 2: Convert to fraction form
877,681.80/1,211,193.96 = 475,273.80/x - Step 3: Cross multiply
877,681.80x = 1,211,193.96 × 475,273.80 - Step 4: Simplify right side
877,681.80x = 575,648,755,906.25 - Step 5: Solve for x
x = 575,648,755,906.25/877,681.80 - Step 6: Final answer
x = 655,874.09
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1.5x scale
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.