Finding the Fourth Proportional to 1,247,763.60, 1,721,731.68 and 703,923.12
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Solution
The fourth proportional to 1,247,763.60, 1,721,731.68 and 703,923.12 is: 971,311.18
Step by Step Solution
- Step 1: Write the proportion equation
1,247,763.60 : 1,721,731.68 = 703,923.12 : x - Step 2: Convert to fraction form
1,247,763.60/1,721,731.68 = 703,923.12/x - Step 3: Cross multiply
1,247,763.60x = 1,721,731.68 × 703,923.12 - Step 4: Simplify right side
1,247,763.60x = 1,211,966,735,988.44 - Step 5: Solve for x
x = 1,211,966,735,988.44/1,247,763.60 - Step 6: Final answer
x = 971,311.18
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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.