Finding the Fourth Proportional to 2,986,455.70, 4,479,683.55 and 2,936,689.30
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Solution
The fourth proportional to 2,986,455.70, 4,479,683.55 and 2,936,689.30 is: 4,405,033.95
Step by Step Solution
- Step 1: Write the proportion equation
2,986,455.70 : 4,479,683.55 = 2,936,689.30 : x - Step 2: Convert to fraction form
2,986,455.70/4,479,683.55 = 2,936,689.30/x - Step 3: Cross multiply
2,986,455.70x = 4,479,683.55 × 2,936,689.30 - Step 4: Simplify right side
2,986,455.70x = 13,155,438,748,671.01 - Step 5: Solve for x
x = 13,155,438,748,671.01/2,986,455.70 - Step 6: Final answer
x = 4,405,033.95
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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.