Finding the Fourth Proportional to 3,158,559.92, 4,358,812.70 and 1,708,255.36
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Solution
The fourth proportional to 3,158,559.92, 4,358,812.70 and 1,708,255.36 is: 2,357,392.40
Step by Step Solution
- Step 1: Write the proportion equation
3,158,559.92 : 4,358,812.70 = 1,708,255.36 : x - Step 2: Convert to fraction form
3,158,559.92/4,358,812.70 = 1,708,255.36/x - Step 3: Cross multiply
3,158,559.92x = 4,358,812.70 × 1,708,255.36 - Step 4: Simplify right side
3,158,559.92x = 7,445,965,172,700.02 - Step 5: Solve for x
x = 7,445,965,172,700.02/3,158,559.92 - Step 6: Final answer
x = 2,357,392.40
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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.