Finding the Fourth Proportional to 408,771.06, 563,519.45 and 287,536.08
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Solution
The fourth proportional to 408,771.06, 563,519.45 and 287,536.08 is: 396,388.57
Step by Step Solution
- Step 1: Write the proportion equation
408,771.06 : 563,519.45 = 287,536.08 : x - Step 2: Convert to fraction form
408,771.06/563,519.45 = 287,536.08/x - Step 3: Cross multiply
408,771.06x = 563,519.45 × 287,536.08 - Step 4: Simplify right side
408,771.06x = 162,032,174,871.40 - Step 5: Solve for x
x = 162,032,174,871.40/408,771.06 - Step 6: Final answer
x = 396,388.57
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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.