Finding the Fourth Proportional to 665,225.35, 918,011.84 and 378,745.36
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Solution
The fourth proportional to 665,225.35, 918,011.84 and 378,745.36 is: 522,669.08
Step by Step Solution
- Step 1: Write the proportion equation
665,225.35 : 918,011.84 = 378,745.36 : x - Step 2: Convert to fraction form
665,225.35/918,011.84 = 378,745.36/x - Step 3: Cross multiply
665,225.35x = 918,011.84 × 378,745.36 - Step 4: Simplify right side
665,225.35x = 347,692,724,825.06 - Step 5: Solve for x
x = 347,692,724,825.06/665,225.35 - Step 6: Final answer
x = 522,669.08
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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.