Finding the Fourth Proportional to 822,700.11, 1,135,291.50 and 478,536.71
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Solution
The fourth proportional to 822,700.11, 1,135,291.50 and 478,536.71 is: 660,360.50
Step by Step Solution
- Step 1: Write the proportion equation
822,700.11 : 1,135,291.50 = 478,536.71 : x - Step 2: Convert to fraction form
822,700.11/1,135,291.50 = 478,536.71/x - Step 3: Cross multiply
822,700.11x = 1,135,291.50 × 478,536.71 - Step 4: Simplify right side
822,700.11x = 543,278,654,970.39 - Step 5: Solve for x
x = 543,278,654,970.39/822,700.11 - Step 6: Final answer
x = 660,360.50
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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.