Finding the Fourth Proportional to 907,886.07, 1,252,892.21 and 499,995.99
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Solution
The fourth proportional to 907,886.07, 1,252,892.21 and 499,995.99 is: 689,999.66
Step by Step Solution
- Step 1: Write the proportion equation
907,886.07 : 1,252,892.21 = 499,995.99 : x - Step 2: Convert to fraction form
907,886.07/1,252,892.21 = 499,995.99/x - Step 3: Cross multiply
907,886.07x = 1,252,892.21 × 499,995.99 - Step 4: Simplify right side
907,886.07x = 626,441,078,402.26 - Step 5: Solve for x
x = 626,441,078,402.26/907,886.07 - Step 6: Final answer
x = 689,999.66
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1.5x scale
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.