Finding the Fourth Proportional to 1,331,497.46, 1,837,808.26 and 821,907.02
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Solution
The fourth proportional to 1,331,497.46, 1,837,808.26 and 821,907.02 is: 1,134,442.65
Step by Step Solution
- Step 1: Write the proportion equation
1,331,497.46 : 1,837,808.26 = 821,907.02 : x - Step 2: Convert to fraction form
1,331,497.46/1,837,808.26 = 821,907.02/x - Step 3: Cross multiply
1,331,497.46x = 1,837,808.26 × 821,907.02 - Step 4: Simplify right side
1,331,497.46x = 1,510,507,510,307.99 - Step 5: Solve for x
x = 1,510,507,510,307.99/1,331,497.46 - Step 6: Final answer
x = 1,134,442.65
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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.