Finding the Fourth Proportional to 513,365.80, 708,408.84 and 298,490.62
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Solution
The fourth proportional to 513,365.80, 708,408.84 and 298,490.62 is: 411,896.14
Step by Step Solution
- Step 1: Write the proportion equation
513,365.80 : 708,408.84 = 298,490.62 : x - Step 2: Convert to fraction form
513,365.80/708,408.84 = 298,490.62/x - Step 3: Cross multiply
513,365.80x = 708,408.84 × 298,490.62 - Step 4: Simplify right side
513,365.80x = 211,453,393,865.08 - Step 5: Solve for x
x = 211,453,393,865.08/513,365.80 - Step 6: Final answer
x = 411,896.14
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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.