Finding the Fourth Proportional to 907,938.06, 1,252,914.09 and 520,475.70
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Solution
The fourth proportional to 907,938.06, 1,252,914.09 and 520,475.70 is: 718,233.28
Step by Step Solution
- Step 1: Write the proportion equation
907,938.06 : 1,252,914.09 = 520,475.70 : x - Step 2: Convert to fraction form
907,938.06/1,252,914.09 = 520,475.70/x - Step 3: Cross multiply
907,938.06x = 1,252,914.09 × 520,475.70 - Step 4: Simplify right side
907,938.06x = 652,111,331,768.04 - Step 5: Solve for x
x = 652,111,331,768.04/907,938.06 - Step 6: Final answer
x = 718,233.28
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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.