Finding the Fourth Proportional to 1,247,030.70, 1,720,756.12 and 703,134.09
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Solution
The fourth proportional to 1,247,030.70, 1,720,756.12 and 703,134.09 is: 970,242.58
Step by Step Solution
- Step 1: Write the proportion equation
1,247,030.70 : 1,720,756.12 = 703,134.09 : x - Step 2: Convert to fraction form
1,247,030.70/1,720,756.12 = 703,134.09/x - Step 3: Cross multiply
1,247,030.70x = 1,720,756.12 × 703,134.09 - Step 4: Simplify right side
1,247,030.70x = 1,209,922,288,548.13 - Step 5: Solve for x
x = 1,209,922,288,548.13/1,247,030.70 - Step 6: Final answer
x = 970,242.58
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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.