Finding the Fourth Proportional to 1,551,985.39, 2,141,708.11 and 971,528.66
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Solution
The fourth proportional to 1,551,985.39, 2,141,708.11 and 971,528.66 is: 1,340,689.69
Step by Step Solution
- Step 1: Write the proportion equation
1,551,985.39 : 2,141,708.11 = 971,528.66 : x - Step 2: Convert to fraction form
1,551,985.39/2,141,708.11 = 971,528.66/x - Step 3: Cross multiply
1,551,985.39x = 2,141,708.11 × 971,528.66 - Step 4: Simplify right side
1,551,985.39x = 2,080,730,810,219.43 - Step 5: Solve for x
x = 2,080,730,810,219.43/1,551,985.39 - Step 6: Final answer
x = 1,340,689.69
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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.