Finding the Fourth Proportional to 639,177.49, 958,455.19 and 339,801.49
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Solution
The fourth proportional to 639,177.49, 958,455.19 and 339,801.49 is: 509,536.88
Step by Step Solution
- Step 1: Write the proportion equation
639,177.49 : 958,455.19 = 339,801.49 : x - Step 2: Convert to fraction form
639,177.49/958,455.19 = 339,801.49/x - Step 3: Cross multiply
639,177.49x = 958,455.19 × 339,801.49 - Step 4: Simplify right side
639,177.49x = 325,684,501,660.23 - Step 5: Solve for x
x = 325,684,501,660.23/639,177.49 - Step 6: Final answer
x = 509,536.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.