Finding the Fourth Proportional to 519,695.64, 717,675.24 and 491,392.08
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Solution
The fourth proportional to 519,695.64, 717,675.24 and 491,392.08 is: 678,589.35
Step by Step Solution
- Step 1: Write the proportion equation
519,695.64 : 717,675.24 = 491,392.08 : x - Step 2: Convert to fraction form
519,695.64/717,675.24 = 491,392.08/x - Step 3: Cross multiply
519,695.64x = 717,675.24 × 491,392.08 - Step 4: Simplify right side
519,695.64x = 352,659,928,948.10 - Step 5: Solve for x
x = 352,659,928,948.10/519,695.64 - Step 6: Final answer
x = 678,589.35
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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.