Finding the Fourth Proportional to 1,313,605.64, 1,971,146.64 and 714,608.72
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Solution
The fourth proportional to 1,313,605.64, 1,971,146.64 and 714,608.72 is: 1,072,314.65
Step by Step Solution
- Step 1: Write the proportion equation
1,313,605.64 : 1,971,146.64 = 714,608.72 : x - Step 2: Convert to fraction form
1,313,605.64/1,971,146.64 = 714,608.72/x - Step 3: Cross multiply
1,313,605.64x = 1,971,146.64 × 714,608.72 - Step 4: Simplify right side
1,313,605.64x = 1,408,598,577,342.70 - Step 5: Solve for x
x = 1,408,598,577,342.70/1,313,605.64 - Step 6: Final answer
x = 1,072,314.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.