Finding the Fourth Proportional to 1,565,428.20, 2,159,336.07 and 1,034,997.63
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Solution
The fourth proportional to 1,565,428.20, 2,159,336.07 and 1,034,997.63 is: 1,427,665.42
Step by Step Solution
- Step 1: Write the proportion equation
1,565,428.20 : 2,159,336.07 = 1,034,997.63 : x - Step 2: Convert to fraction form
1,565,428.20/2,159,336.07 = 1,034,997.63/x - Step 3: Cross multiply
1,565,428.20x = 2,159,336.07 × 1,034,997.63 - Step 4: Simplify right side
1,565,428.20x = 2,234,907,714,823.51 - Step 5: Solve for x
x = 2,234,907,714,823.51/1,565,428.20 - Step 6: Final answer
x = 1,427,665.42
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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.