Finding the Fourth Proportional to 4,278,178.80, 6,417,206.16 and 1,039,740.48
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Solution
The fourth proportional to 4,278,178.80, 6,417,206.16 and 1,039,740.48 is: 1,559,595.64
Step by Step Solution
- Step 1: Write the proportion equation
4,278,178.80 : 6,417,206.16 = 1,039,740.48 : x - Step 2: Convert to fraction form
4,278,178.80/6,417,206.16 = 1,039,740.48/x - Step 3: Cross multiply
4,278,178.80x = 6,417,206.16 × 1,039,740.48 - Step 4: Simplify right side
4,278,178.80x = 6,672,229,013,057.36 - Step 5: Solve for x
x = 6,672,229,013,057.36/4,278,178.80 - Step 6: Final answer
x = 1,559,595.64
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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.