Finding the Fourth Proportional to 4,272,922.80, 6,409,384.20 and 1,281,106.80
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Solution
The fourth proportional to 4,272,922.80, 6,409,384.20 and 1,281,106.80 is: 1,921,660.20
Step by Step Solution
- Step 1: Write the proportion equation
4,272,922.80 : 6,409,384.20 = 1,281,106.80 : x - Step 2: Convert to fraction form
4,272,922.80/6,409,384.20 = 1,281,106.80/x - Step 3: Cross multiply
4,272,922.80x = 6,409,384.20 × 1,281,106.80 - Step 4: Simplify right side
4,272,922.80x = 8,211,105,682,432.56 - Step 5: Solve for x
x = 8,211,105,682,432.56/4,272,922.80 - Step 6: Final answer
x = 1,921,660.20
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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.