Finding the Fourth Proportional to 1,420,027.11, 1,959,779.21 and 847,067.28
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Solution
The fourth proportional to 1,420,027.11, 1,959,779.21 and 847,067.28 is: 1,169,037.43
Step by Step Solution
- Step 1: Write the proportion equation
1,420,027.11 : 1,959,779.21 = 847,067.28 : x - Step 2: Convert to fraction form
1,420,027.11/1,959,779.21 = 847,067.28/x - Step 3: Cross multiply
1,420,027.11x = 1,959,779.21 × 847,067.28 - Step 4: Simplify right side
1,420,027.11x = 1,660,064,830,781.02 - Step 5: Solve for x
x = 1,660,064,830,781.02/1,420,027.11 - Step 6: Final answer
x = 1,169,037.43
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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.