Finding the Fourth Proportional to 935,660.60, 1,291,210.70 and 505,939.70
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Solution
The fourth proportional to 935,660.60, 1,291,210.70 and 505,939.70 is: 698,196.28
Step by Step Solution
- Step 1: Write the proportion equation
935,660.60 : 1,291,210.70 = 505,939.70 : x - Step 2: Convert to fraction form
935,660.60/1,291,210.70 = 505,939.70/x - Step 3: Cross multiply
935,660.60x = 1,291,210.70 × 505,939.70 - Step 4: Simplify right side
935,660.60x = 653,274,754,194.79 - Step 5: Solve for x
x = 653,274,754,194.79/935,660.60 - Step 6: Final answer
x = 698,196.28
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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.