Finding the Fourth Proportional to 1,154,690.76, 1,593,408.84 and 638,414.76
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Solution
The fourth proportional to 1,154,690.76, 1,593,408.84 and 638,414.76 is: 880,976.76
Step by Step Solution
- Step 1: Write the proportion equation
1,154,690.76 : 1,593,408.84 = 638,414.76 : x - Step 2: Convert to fraction form
1,154,690.76/1,593,408.84 = 638,414.76/x - Step 3: Cross multiply
1,154,690.76x = 1,593,408.84 × 638,414.76 - Step 4: Simplify right side
1,154,690.76x = 1,017,255,722,170.48 - Step 5: Solve for x
x = 1,017,255,722,170.48/1,154,690.76 - Step 6: Final answer
x = 880,976.76
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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.