Finding the Fourth Proportional to 709,827.80, 979,557.36 and 387,537.88
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Solution
The fourth proportional to 709,827.80, 979,557.36 and 387,537.88 is: 534,799.54
Step by Step Solution
- Step 1: Write the proportion equation
709,827.80 : 979,557.36 = 387,537.88 : x - Step 2: Convert to fraction form
709,827.80/979,557.36 = 387,537.88/x - Step 3: Cross multiply
709,827.80x = 979,557.36 × 387,537.88 - Step 4: Simplify right side
709,827.80x = 379,615,582,632.80 - Step 5: Solve for x
x = 379,615,582,632.80/709,827.80 - Step 6: Final answer
x = 534,799.54
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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.