Finding the Fourth Proportional to 960,621.14, 1,440,898.88 and 455,424.14
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Solution
The fourth proportional to 960,621.14, 1,440,898.88 and 455,424.14 is: 683,120.65
Step by Step Solution
- Step 1: Write the proportion equation
960,621.14 : 1,440,898.88 = 455,424.14 : x - Step 2: Convert to fraction form
960,621.14/1,440,898.88 = 455,424.14/x - Step 3: Cross multiply
960,621.14x = 1,440,898.88 × 455,424.14 - Step 4: Simplify right side
960,621.14x = 656,220,133,250.96 - Step 5: Solve for x
x = 656,220,133,250.96/960,621.14 - Step 6: Final answer
x = 683,120.65
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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.