Finding the Fourth Proportional to 2,429,412.84, 3,640,120.70 and 831,102.21
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Solution
The fourth proportional to 2,429,412.84, 3,640,120.70 and 831,102.21 is: 1,245,285.41
Step by Step Solution
- Step 1: Write the proportion equation
2,429,412.84 : 3,640,120.70 = 831,102.21 : x - Step 2: Convert to fraction form
2,429,412.84/3,640,120.70 = 831,102.21/x - Step 3: Cross multiply
2,429,412.84x = 3,640,120.70 × 831,102.21 - Step 4: Simplify right side
2,429,412.84x = 3,025,312,354,281.24 - Step 5: Solve for x
x = 3,025,312,354,281.24/2,429,412.84 - Step 6: Final answer
x = 1,245,285.41
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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.