Finding the Fourth Proportional to 1,615,030.68, 2,228,899.36 and 1,206,423.11
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Solution
The fourth proportional to 1,615,030.68, 2,228,899.36 and 1,206,423.11 is: 1,664,981.19
Step by Step Solution
- Step 1: Write the proportion equation
1,615,030.68 : 2,228,899.36 = 1,206,423.11 : x - Step 2: Convert to fraction form
1,615,030.68/2,228,899.36 = 1,206,423.11/x - Step 3: Cross multiply
1,615,030.68x = 2,228,899.36 × 1,206,423.11 - Step 4: Simplify right side
1,615,030.68x = 2,688,995,702,586.44 - Step 5: Solve for x
x = 2,688,995,702,586.44/1,615,030.68 - Step 6: Final answer
x = 1,664,981.19
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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.