Finding the Fourth Proportional to 2,953,547.80, 4,430,321.70 and 1,690,336.60
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Solution
The fourth proportional to 2,953,547.80, 4,430,321.70 and 1,690,336.60 is: 2,535,504.90
Step by Step Solution
- Step 1: Write the proportion equation
2,953,547.80 : 4,430,321.70 = 1,690,336.60 : x - Step 2: Convert to fraction form
2,953,547.80/4,430,321.70 = 1,690,336.60/x - Step 3: Cross multiply
2,953,547.80x = 4,430,321.70 × 1,690,336.60 - Step 4: Simplify right side
2,953,547.80x = 7,488,734,919,284.22 - Step 5: Solve for x
x = 7,488,734,919,284.22/2,953,547.80 - Step 6: Final answer
x = 2,535,504.90
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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.