Finding the Fourth Proportional to 430,575.05, 645,731.22 and 346,134.98
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Solution
The fourth proportional to 430,575.05, 645,731.22 and 346,134.98 is: 519,096.88
Step by Step Solution
- Step 1: Write the proportion equation
430,575.05 : 645,731.22 = 346,134.98 : x - Step 2: Convert to fraction form
430,575.05/645,731.22 = 346,134.98/x - Step 3: Cross multiply
430,575.05x = 645,731.22 × 346,134.98 - Step 4: Simplify right side
430,575.05x = 223,510,162,920.08 - Step 5: Solve for x
x = 223,510,162,920.08/430,575.05 - Step 6: Final answer
x = 519,096.88
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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.