Finding the Fourth Proportional to 403,919.20, 605,878.80 and 291,944.80
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Solution
The fourth proportional to 403,919.20, 605,878.80 and 291,944.80 is: 437,917.20
Step by Step Solution
- Step 1: Write the proportion equation
403,919.20 : 605,878.80 = 291,944.80 : x - Step 2: Convert to fraction form
403,919.20/605,878.80 = 291,944.80/x - Step 3: Cross multiply
403,919.20x = 605,878.80 × 291,944.80 - Step 4: Simplify right side
403,919.20x = 176,883,165,090.24 - Step 5: Solve for x
x = 176,883,165,090.24/403,919.20 - Step 6: Final answer
x = 437,917.20
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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.