Finding the Fourth Proportional to 2,119,246.20, 3,178,869.30 and 698,959.80
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Solution
The fourth proportional to 2,119,246.20, 3,178,869.30 and 698,959.80 is: 1,048,439.70
Step by Step Solution
- Step 1: Write the proportion equation
2,119,246.20 : 3,178,869.30 = 698,959.80 : x - Step 2: Convert to fraction form
2,119,246.20/3,178,869.30 = 698,959.80/x - Step 3: Cross multiply
2,119,246.20x = 3,178,869.30 × 698,959.80 - Step 4: Simplify right side
2,119,246.20x = 2,221,901,850,154.14 - Step 5: Solve for x
x = 2,221,901,850,154.14/2,119,246.20 - Step 6: Final answer
x = 1,048,439.70
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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.