Finding the Fourth Proportional to 714,067.20, 1,070,167.68 and 292,867.20
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Solution
The fourth proportional to 714,067.20, 1,070,167.68 and 292,867.20 is: 438,918.09
Step by Step Solution
- Step 1: Write the proportion equation
714,067.20 : 1,070,167.68 = 292,867.20 : x - Step 2: Convert to fraction form
714,067.20/1,070,167.68 = 292,867.20/x - Step 3: Cross multiply
714,067.20x = 1,070,167.68 × 292,867.20 - Step 4: Simplify right side
714,067.20x = 313,417,011,972.10 - Step 5: Solve for x
x = 313,417,011,972.10/714,067.20 - Step 6: Final answer
x = 438,918.09
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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.