Finding the Fourth Proportional to 639,518.47, 882,537.40 and 349,130.49
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Solution
The fourth proportional to 639,518.47, 882,537.40 and 349,130.49 is: 481,801.12
Step by Step Solution
- Step 1: Write the proportion equation
639,518.47 : 882,537.40 = 349,130.49 : x - Step 2: Convert to fraction form
639,518.47/882,537.40 = 349,130.49/x - Step 3: Cross multiply
639,518.47x = 882,537.40 × 349,130.49 - Step 4: Simplify right side
639,518.47x = 308,120,714,905.33 - Step 5: Solve for x
x = 308,120,714,905.33/639,518.47 - Step 6: Final answer
x = 481,801.12
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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.