Finding the Fourth Proportional to 875,771.40, 1,313,657.10 and 476,257.80
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Solution
The fourth proportional to 875,771.40, 1,313,657.10 and 476,257.80 is: 714,386.70
Step by Step Solution
- Step 1: Write the proportion equation
875,771.40 : 1,313,657.10 = 476,257.80 : x - Step 2: Convert to fraction form
875,771.40/1,313,657.10 = 476,257.80/x - Step 3: Cross multiply
875,771.40x = 1,313,657.10 × 476,257.80 - Step 4: Simplify right side
875,771.40x = 625,639,440,400.38 - Step 5: Solve for x
x = 625,639,440,400.38/875,771.40 - Step 6: Final answer
x = 714,386.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.