Finding the Fourth Proportional to 430,276.73, 644,740.76 and 272,171.21
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Solution
The fourth proportional to 430,276.73, 644,740.76 and 272,171.21 is: 407,830.26
Step by Step Solution
- Step 1: Write the proportion equation
430,276.73 : 644,740.76 = 272,171.21 : x - Step 2: Convert to fraction form
430,276.73/644,740.76 = 272,171.21/x - Step 3: Cross multiply
430,276.73x = 644,740.76 × 272,171.21 - Step 4: Simplify right side
430,276.73x = 175,479,870,242.24 - Step 5: Solve for x
x = 175,479,870,242.24/430,276.73 - Step 6: Final answer
x = 407,830.26
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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.