Finding the Fourth Proportional to 772,067.34, 1,158,246.74 and 292,438.80
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Solution
The fourth proportional to 772,067.34, 1,158,246.74 and 292,438.80 is: 438,713.40
Step by Step Solution
- Step 1: Write the proportion equation
772,067.34 : 1,158,246.74 = 292,438.80 : x - Step 2: Convert to fraction form
772,067.34/1,158,246.74 = 292,438.80/x - Step 3: Cross multiply
772,067.34x = 1,158,246.74 × 292,438.80 - Step 4: Simplify right side
772,067.34x = 338,716,287,480.61 - Step 5: Solve for x
x = 338,716,287,480.61/772,067.34 - Step 6: Final answer
x = 438,713.40
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1.5x scale
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.