Finding the Fourth Proportional to 1,117,987.02, 1,542,961.44 and 634,708.62
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Solution
The fourth proportional to 1,117,987.02, 1,542,961.44 and 634,708.62 is: 875,977.01
Step by Step Solution
- Step 1: Write the proportion equation
1,117,987.02 : 1,542,961.44 = 634,708.62 : x - Step 2: Convert to fraction form
1,117,987.02/1,542,961.44 = 634,708.62/x - Step 3: Cross multiply
1,117,987.02x = 1,542,961.44 × 634,708.62 - Step 4: Simplify right side
1,117,987.02x = 979,330,926,295.61 - Step 5: Solve for x
x = 979,330,926,295.61/1,117,987.02 - Step 6: Final answer
x = 875,977.01
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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.