Finding the Fourth Proportional to 1,532,990.64, 2,115,549.08 and 879,723.12
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Solution
The fourth proportional to 1,532,990.64, 2,115,549.08 and 879,723.12 is: 1,214,030.53
Step by Step Solution
- Step 1: Write the proportion equation
1,532,990.64 : 2,115,549.08 = 879,723.12 : x - Step 2: Convert to fraction form
1,532,990.64/2,115,549.08 = 879,723.12/x - Step 3: Cross multiply
1,532,990.64x = 2,115,549.08 × 879,723.12 - Step 4: Simplify right side
1,532,990.64x = 1,861,097,437,170.73 - Step 5: Solve for x
x = 1,861,097,437,170.73/1,532,990.64 - Step 6: Final answer
x = 1,214,030.53
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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.