Finding the Fourth Proportional to 1,279,622.12, 1,765,789.62 and 706,657.28
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Solution
The fourth proportional to 1,279,622.12, 1,765,789.62 and 706,657.28 is: 975,137.95
Step by Step Solution
- Step 1: Write the proportion equation
1,279,622.12 : 1,765,789.62 = 706,657.28 : x - Step 2: Convert to fraction form
1,279,622.12/1,765,789.62 = 706,657.28/x - Step 3: Cross multiply
1,279,622.12x = 1,765,789.62 × 706,657.28 - Step 4: Simplify right side
1,279,622.12x = 1,247,808,089,921.43 - Step 5: Solve for x
x = 1,247,808,089,921.43/1,279,622.12 - Step 6: Final answer
x = 975,137.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.