Finding the Fourth Proportional to 438,911.12, 605,454.82 and 357,327.13
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Solution
The fourth proportional to 438,911.12, 605,454.82 and 357,327.13 is: 492,913.99
Step by Step Solution
- Step 1: Write the proportion equation
438,911.12 : 605,454.82 = 357,327.13 : x - Step 2: Convert to fraction form
438,911.12/605,454.82 = 357,327.13/x - Step 3: Cross multiply
438,911.12x = 605,454.82 × 357,327.13 - Step 4: Simplify right side
438,911.12x = 216,345,433,175.27 - Step 5: Solve for x
x = 216,345,433,175.27/438,911.12 - Step 6: Final answer
x = 492,913.99
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1.5x scale
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.