Finding the Fourth Proportional to 1,425,114.91, 1,966,660.47 and 771,742.06
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Solution
The fourth proportional to 1,425,114.91, 1,966,660.47 and 771,742.06 is: 1,065,005.06
Step by Step Solution
- Step 1: Write the proportion equation
1,425,114.91 : 1,966,660.47 = 771,742.06 : x - Step 2: Convert to fraction form
1,425,114.91/1,966,660.47 = 771,742.06/x - Step 3: Cross multiply
1,425,114.91x = 1,966,660.47 × 771,742.06 - Step 4: Simplify right side
1,425,114.91x = 1,517,754,588,746.36 - Step 5: Solve for x
x = 1,517,754,588,746.36/1,425,114.91 - Step 6: Final answer
x = 1,065,005.06
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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.