Finding the Fourth Proportional to 2,119,833.20, 3,178,655.40 and 623,730.80
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Solution
The fourth proportional to 2,119,833.20, 3,178,655.40 and 623,730.80 is: 935,274.19
Step by Step Solution
- Step 1: Write the proportion equation
2,119,833.20 : 3,178,655.40 = 623,730.80 : x - Step 2: Convert to fraction form
2,119,833.20/3,178,655.40 = 623,730.80/x - Step 3: Cross multiply
2,119,833.20x = 3,178,655.40 × 623,730.80 - Step 4: Simplify right side
2,119,833.20x = 1,982,625,275,566.32 - Step 5: Solve for x
x = 1,982,625,275,566.32/2,119,833.20 - Step 6: Final answer
x = 935,274.19
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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.