Finding the Fourth Proportional to 2,508,989.12, 3,462,155.12 and 1,421,043.60
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Solution
The fourth proportional to 2,508,989.12, 3,462,155.12 and 1,421,043.60 is: 1,960,898.65
Step by Step Solution
- Step 1: Write the proportion equation
2,508,989.12 : 3,462,155.12 = 1,421,043.60 : x - Step 2: Convert to fraction form
2,508,989.12/3,462,155.12 = 1,421,043.60/x - Step 3: Cross multiply
2,508,989.12x = 3,462,155.12 × 1,421,043.60 - Step 4: Simplify right side
2,508,989.12x = 4,919,873,375,483.23 - Step 5: Solve for x
x = 4,919,873,375,483.23/2,508,989.12 - Step 6: Final answer
x = 1,960,898.65
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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.