Finding the Fourth Proportional to 860,248.62, 1,290,289.55 and 261,215.06
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Solution
The fourth proportional to 860,248.62, 1,290,289.55 and 261,215.06 is: 391,797.26
Step by Step Solution
- Step 1: Write the proportion equation
860,248.62 : 1,290,289.55 = 261,215.06 : x - Step 2: Convert to fraction form
860,248.62/1,290,289.55 = 261,215.06/x - Step 3: Cross multiply
860,248.62x = 1,290,289.55 × 261,215.06 - Step 4: Simplify right side
860,248.62x = 337,043,054,463.10 - Step 5: Solve for x
x = 337,043,054,463.10/860,248.62 - Step 6: Final answer
x = 391,797.26
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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.