Finding the Fourth Proportional to 1,810,619.70, 2,715,929.55 and 970,811.70
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Solution
The fourth proportional to 1,810,619.70, 2,715,929.55 and 970,811.70 is: 1,456,217.55
Step by Step Solution
- Step 1: Write the proportion equation
1,810,619.70 : 2,715,929.55 = 970,811.70 : x - Step 2: Convert to fraction form
1,810,619.70/2,715,929.55 = 970,811.70/x - Step 3: Cross multiply
1,810,619.70x = 2,715,929.55 × 970,811.70 - Step 4: Simplify right side
1,810,619.70x = 2,636,656,183,515.74 - Step 5: Solve for x
x = 2,636,656,183,515.74/1,810,619.70 - Step 6: Final answer
x = 1,456,217.55
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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.