Finding the Fourth Proportional to 561,686.08, 775,138.80 and 307,060.96
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Solution
The fourth proportional to 561,686.08, 775,138.80 and 307,060.96 is: 423,750.69
Step by Step Solution
- Step 1: Write the proportion equation
561,686.08 : 775,138.80 = 307,060.96 : x - Step 2: Convert to fraction form
561,686.08/775,138.80 = 307,060.96/x - Step 3: Cross multiply
561,686.08x = 775,138.80 × 307,060.96 - Step 4: Simplify right side
561,686.08x = 238,014,864,061.25 - Step 5: Solve for x
x = 238,014,864,061.25/561,686.08 - Step 6: Final answer
x = 423,750.69
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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.