Finding the Fourth Proportional to 764,842.64, 1,055,565.50 and 478,454.99
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Solution
The fourth proportional to 764,842.64, 1,055,565.50 and 478,454.99 is: 660,319.59
Step by Step Solution
- Step 1: Write the proportion equation
764,842.64 : 1,055,565.50 = 478,454.99 : x - Step 2: Convert to fraction form
764,842.64/1,055,565.50 = 478,454.99/x - Step 3: Cross multiply
764,842.64x = 1,055,565.50 × 478,454.99 - Step 4: Simplify right side
764,842.64x = 505,040,573,076.74 - Step 5: Solve for x
x = 505,040,573,076.74/764,842.64 - Step 6: Final answer
x = 660,319.59
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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.