Finding the Fourth Proportional to 3,128,622.75, 4,317,499.40 and 1,697,838.75
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Solution
The fourth proportional to 3,128,622.75, 4,317,499.40 and 1,697,838.75 is: 2,343,017.48
Step by Step Solution
- Step 1: Write the proportion equation
3,128,622.75 : 4,317,499.40 = 1,697,838.75 : x - Step 2: Convert to fraction form
3,128,622.75/4,317,499.40 = 1,697,838.75/x - Step 3: Cross multiply
3,128,622.75x = 4,317,499.40 × 1,697,838.75 - Step 4: Simplify right side
3,128,622.75x = 7,330,417,775,932.56 - Step 5: Solve for x
x = 7,330,417,775,932.56/3,128,622.75 - Step 6: Final answer
x = 2,343,017.48
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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.