Finding the Fourth Proportional to 688,027.05, 1,031,631.74 and 261,594.09
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Solution
The fourth proportional to 688,027.05, 1,031,631.74 and 261,594.09 is: 392,235.70
Step by Step Solution
- Step 1: Write the proportion equation
688,027.05 : 1,031,631.74 = 261,594.09 : x - Step 2: Convert to fraction form
688,027.05/1,031,631.74 = 261,594.09/x - Step 3: Cross multiply
688,027.05x = 1,031,631.74 × 261,594.09 - Step 4: Simplify right side
688,027.05x = 269,868,769,782.04 - Step 5: Solve for x
x = 269,868,769,782.04/688,027.05 - Step 6: Final answer
x = 392,235.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.