Finding the Fourth Proportional to 665,331.76, 918,158.34 and 359,408.08
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Solution
The fourth proportional to 665,331.76, 918,158.34 and 359,408.08 is: 495,983.43
Step by Step Solution
- Step 1: Write the proportion equation
665,331.76 : 918,158.34 = 359,408.08 : x - Step 2: Convert to fraction form
665,331.76/918,158.34 = 359,408.08/x - Step 3: Cross multiply
665,331.76x = 918,158.34 × 359,408.08 - Step 4: Simplify right side
665,331.76x = 329,993,526,115.39 - Step 5: Solve for x
x = 329,993,526,115.39/665,331.76 - Step 6: Final answer
x = 495,983.43
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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.