Finding the Fourth Proportional to 929,761.34, 1,282,972.05 and 521,908.07
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Solution
The fourth proportional to 929,761.34, 1,282,972.05 and 521,908.07 is: 720,177.79
Step by Step Solution
- Step 1: Write the proportion equation
929,761.34 : 1,282,972.05 = 521,908.07 : x - Step 2: Convert to fraction form
929,761.34/1,282,972.05 = 521,908.07/x - Step 3: Cross multiply
929,761.34x = 1,282,972.05 × 521,908.07 - Step 4: Simplify right side
929,761.34x = 669,593,460,064.58 - Step 5: Solve for x
x = 669,593,460,064.58/929,761.34 - Step 6: Final answer
x = 720,177.79
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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.