Finding the Fourth Proportional to 513,374.21, 708,171.99 and 298,490.52
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Solution
The fourth proportional to 513,374.21, 708,171.99 and 298,490.52 is: 411,751.55
Step by Step Solution
- Step 1: Write the proportion equation
513,374.21 : 708,171.99 = 298,490.52 : x - Step 2: Convert to fraction form
513,374.21/708,171.99 = 298,490.52/x - Step 3: Cross multiply
513,374.21x = 708,171.99 × 298,490.52 - Step 4: Simplify right side
513,374.21x = 211,382,625,544.54 - Step 5: Solve for x
x = 211,382,625,544.54/513,374.21 - Step 6: Final answer
x = 411,751.55
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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.