Finding the Fourth Proportional to 4,772,430.05, 7,158,659.94 and 1,178,197.38
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Solution
The fourth proportional to 4,772,430.05, 7,158,659.94 and 1,178,197.38 is: 1,767,299.75
Step by Step Solution
- Step 1: Write the proportion equation
4,772,430.05 : 7,158,659.94 = 1,178,197.38 : x - Step 2: Convert to fraction form
4,772,430.05/7,158,659.94 = 1,178,197.38/x - Step 3: Cross multiply
4,772,430.05x = 7,158,659.94 × 1,178,197.38 - Step 4: Simplify right side
4,772,430.05x = 8,434,314,419,133.95 - Step 5: Solve for x
x = 8,434,314,419,133.95/4,772,430.05 - Step 6: Final answer
x = 1,767,299.75
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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.