Finding the Fourth Proportional to 2,542,931.13, 3,509,246.37 and 1,397,085.28
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Solution
The fourth proportional to 2,542,931.13, 3,509,246.37 and 1,397,085.28 is: 1,927,978.46
Step by Step Solution
- Step 1: Write the proportion equation
2,542,931.13 : 3,509,246.37 = 1,397,085.28 : x - Step 2: Convert to fraction form
2,542,931.13/3,509,246.37 = 1,397,085.28/x - Step 3: Cross multiply
2,542,931.13x = 3,509,246.37 × 1,397,085.28 - Step 4: Simplify right side
2,542,931.13x = 4,902,716,447,420.43 - Step 5: Solve for x
x = 4,902,716,447,420.43/2,542,931.13 - Step 6: Final answer
x = 1,927,978.46
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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.