Finding the Fourth Proportional to 519,670.08, 717,639.95 and 491,366.55
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Solution
The fourth proportional to 519,670.08, 717,639.95 and 491,366.55 is: 678,554.11
Step by Step Solution
- Step 1: Write the proportion equation
519,670.08 : 717,639.95 = 491,366.55 : x - Step 2: Convert to fraction form
519,670.08/717,639.95 = 491,366.55/x - Step 3: Cross multiply
519,670.08x = 717,639.95 × 491,366.55 - Step 4: Simplify right side
519,670.08x = 352,624,270,293.24 - Step 5: Solve for x
x = 352,624,270,293.24/519,670.08 - Step 6: Final answer
x = 678,554.11
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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.