Finding the Fourth Proportional to 1,991,422.06, 2,987,056.09 and 571,478.14
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Solution
The fourth proportional to 1,991,422.06, 2,987,056.09 and 571,478.14 is: 857,195.11
Step by Step Solution
- Step 1: Write the proportion equation
1,991,422.06 : 2,987,056.09 = 571,478.14 : x - Step 2: Convert to fraction form
1,991,422.06/2,987,056.09 = 571,478.14/x - Step 3: Cross multiply
1,991,422.06x = 2,987,056.09 × 571,478.14 - Step 4: Simplify right side
1,991,422.06x = 1,707,037,242,820.29 - Step 5: Solve for x
x = 1,707,037,242,820.29/1,991,422.06 - Step 6: Final answer
x = 857,195.11
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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.