Finding the Fourth Proportional to 873,639.24, 1,205,422.74 and 491,526.60
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Solution
The fourth proportional to 873,639.24, 1,205,422.74 and 491,526.60 is: 678,194.52
Step by Step Solution
- Step 1: Write the proportion equation
873,639.24 : 1,205,422.74 = 491,526.60 : x - Step 2: Convert to fraction form
873,639.24/1,205,422.74 = 491,526.60/x - Step 3: Cross multiply
873,639.24x = 1,205,422.74 × 491,526.60 - Step 4: Simplify right side
873,639.24x = 592,497,340,954.88 - Step 5: Solve for x
x = 592,497,340,954.88/873,639.24 - Step 6: Final answer
x = 678,194.52
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1.5x scale
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.