Finding the Fourth Proportional to 1,029,671.26, 1,420,874.66 and 570,781.42
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Solution
The fourth proportional to 1,029,671.26, 1,420,874.66 and 570,781.42 is: 787,638.63
Step by Step Solution
- Step 1: Write the proportion equation
1,029,671.26 : 1,420,874.66 = 570,781.42 : x - Step 2: Convert to fraction form
1,029,671.26/1,420,874.66 = 570,781.42/x - Step 3: Cross multiply
1,029,671.26x = 1,420,874.66 × 570,781.42 - Step 4: Simplify right side
1,029,671.26x = 811,008,856,076.82 - Step 5: Solve for x
x = 811,008,856,076.82/1,029,671.26 - Step 6: Final answer
x = 787,638.63
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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.