Finding the Fourth Proportional to 1,457,913.80, 2,011,921.90 and 813,333.99
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Solution
The fourth proportional to 1,457,913.80, 2,011,921.90 and 813,333.99 is: 1,122,401.39
Step by Step Solution
- Step 1: Write the proportion equation
1,457,913.80 : 2,011,921.90 = 813,333.99 : x - Step 2: Convert to fraction form
1,457,913.80/2,011,921.90 = 813,333.99/x - Step 3: Cross multiply
1,457,913.80x = 2,011,921.90 × 813,333.99 - Step 4: Simplify right side
1,457,913.80x = 1,636,364,471,525.19 - Step 5: Solve for x
x = 1,636,364,471,525.19/1,457,913.80 - Step 6: Final answer
x = 1,122,401.39
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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.