Finding the Fourth Proportional to 659,219.80, 988,829.70 and 493,331.80
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Solution
The fourth proportional to 659,219.80, 988,829.70 and 493,331.80 is: 739,997.70
Step by Step Solution
- Step 1: Write the proportion equation
659,219.80 : 988,829.70 = 493,331.80 : x - Step 2: Convert to fraction form
659,219.80/988,829.70 = 493,331.80/x - Step 3: Cross multiply
659,219.80x = 988,829.70 × 493,331.80 - Step 4: Simplify right side
659,219.80x = 487,821,135,794.46 - Step 5: Solve for x
x = 487,821,135,794.46/659,219.80 - Step 6: Final answer
x = 739,997.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.