Finding the Fourth Proportional to 1,344,320.20, 1,855,138.42 and 732,478.03
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Solution
The fourth proportional to 1,344,320.20, 1,855,138.42 and 732,478.03 is: 1,010,806.90
Step by Step Solution
- Step 1: Write the proportion equation
1,344,320.20 : 1,855,138.42 = 732,478.03 : x - Step 2: Convert to fraction form
1,344,320.20/1,855,138.42 = 732,478.03/x - Step 3: Cross multiply
1,344,320.20x = 1,855,138.42 × 732,478.03 - Step 4: Simplify right side
1,344,320.20x = 1,358,848,135,258.91 - Step 5: Solve for x
x = 1,358,848,135,258.91/1,344,320.20 - Step 6: Final answer
x = 1,010,806.90
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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.