Finding the Fourth Proportional to 2,271,631.68, 3,134,871.74 and 1,239,144.05
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Solution
The fourth proportional to 2,271,631.68, 3,134,871.74 and 1,239,144.05 is: 1,710,029.71
Step by Step Solution
- Step 1: Write the proportion equation
2,271,631.68 : 3,134,871.74 = 1,239,144.05 : x - Step 2: Convert to fraction form
2,271,631.68/3,134,871.74 = 1,239,144.05/x - Step 3: Cross multiply
2,271,631.68x = 3,134,871.74 × 1,239,144.05 - Step 4: Simplify right side
2,271,631.68x = 3,884,557,664,134.15 - Step 5: Solve for x
x = 3,884,557,664,134.15/2,271,631.68 - Step 6: Final answer
x = 1,710,029.71
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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.