Finding the Fourth Proportional to 406,564.71, 609,848.40 and 102,958.70
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Solution
The fourth proportional to 406,564.71, 609,848.40 and 102,958.70 is: 154,438.39
Step by Step Solution
- Step 1: Write the proportion equation
406,564.71 : 609,848.40 = 102,958.70 : x - Step 2: Convert to fraction form
406,564.71/609,848.40 = 102,958.70/x - Step 3: Cross multiply
406,564.71x = 609,848.40 × 102,958.70 - Step 4: Simplify right side
406,564.71x = 62,789,198,461.08 - Step 5: Solve for x
x = 62,789,198,461.08/406,564.71 - Step 6: Final answer
x = 154,438.39
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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.