Finding the Fourth Proportional to 819,497.74, 1,128,333.45 and 696,748.72
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Solution
The fourth proportional to 819,497.74, 1,128,333.45 and 696,748.72 is: 959,325.27
Step by Step Solution
- Step 1: Write the proportion equation
819,497.74 : 1,128,333.45 = 696,748.72 : x - Step 2: Convert to fraction form
819,497.74/1,128,333.45 = 696,748.72/x - Step 3: Cross multiply
819,497.74x = 1,128,333.45 × 696,748.72 - Step 4: Simplify right side
819,497.74x = 786,164,887,020.68 - Step 5: Solve for x
x = 786,164,887,020.68/819,497.74 - Step 6: Final answer
x = 959,325.27
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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.