Finding the Fourth Proportional to 1,863,139.20, 2,794,708.80 and 918,355.20
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Solution
The fourth proportional to 1,863,139.20, 2,794,708.80 and 918,355.20 is: 1,377,532.80
Step by Step Solution
- Step 1: Write the proportion equation
1,863,139.20 : 2,794,708.80 = 918,355.20 : x - Step 2: Convert to fraction form
1,863,139.20/2,794,708.80 = 918,355.20/x - Step 3: Cross multiply
1,863,139.20x = 2,794,708.80 × 918,355.20 - Step 4: Simplify right side
1,863,139.20x = 2,566,535,358,965.76 - Step 5: Solve for x
x = 2,566,535,358,965.76/1,863,139.20 - Step 6: Final answer
x = 1,377,532.80
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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.